Here are the key uses of energy:
1. Electricity generation - to power homes, businesses, and industries
2. Transportation - to fuel vehicles like cars, trucks, ships, and planes
3. Heating and cooling - to heat and cool homes and buildings
4. Manufacturing - as a raw material and power source for factories
5. Cooking and lighting - to provide light and heat for cooking food
Energy is extremely important to the advancement of society. It powers our economy, infrastructure, transportation, communication networks, and more. To ensure energy independence for current and future generations, countries need to develop diverse energy portfolios that incorporate both non-renewable and renewable resources. Investing in
CAMBRIDGE GEOGRAPHY A2 REVISION - ENVIRONMENTAL MANAGEMENT: SUSTAINABLE ENERGY SUPPLIES. Presentation suitable for Cambridge A2 level students. It contains: key terms and definitions, topic summary, additional works and suggested websites.
RENEWABLE ENERGY ALTERNATIVES AS VEHICLE FOR LONG TERM SUSTAINABILITY AND SUS...Prashant Mehta
This article shows insight into sustainable development and long term sustainability of environment through prudent use of resources besides exploring alternative resources of energy to the fullest.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
CAMBRIDGE GEOGRAPHY A2 REVISION - ENVIRONMENTAL MANAGEMENT: SUSTAINABLE ENERGY SUPPLIES. Presentation suitable for Cambridge A2 level students. It contains: key terms and definitions, topic summary, additional works and suggested websites.
RENEWABLE ENERGY ALTERNATIVES AS VEHICLE FOR LONG TERM SUSTAINABILITY AND SUS...Prashant Mehta
This article shows insight into sustainable development and long term sustainability of environment through prudent use of resources besides exploring alternative resources of energy to the fullest.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Climate change is any change in climate which is attributed directly or indirectly to human activity and that alters the composition of the global atmosphere (United Nations 1992). Climate change is caused by the increment of greenhouse gases in the atmosphere through the burning of fossil fuels and land use (United Nations 1992). This causes increased radiation of infrared rays back to the earth hence temperature increases through the greenhouse gas effect.
Climate change worldwide is affecting biophysical and social systems (Maitima. J. et al 2009). The spatial extent and intensity of these effects vary geographically from one place to another depending on the location in the global atmospheric systems, regional settings, land cover, land use patterns, topography and weather patterns (Maitima. J. et al 2009). These effects have become a major concern for most countries of the world due to their longterm implications and adverse effects on development activities with developing and underdeveloped nations being the most affected (ECOLAO 2012) Indigenous people are most vulnerable to impacts of climate change due to their high reliance on climate sensitive natural resources, inhabitation of fragile ecosystems and social, economic plus political marginalization (ECOLAO 2012).
The United Nations Framework Convention on Climate Change (UNFCCC) is an international environmental treaty (also known as a multilateral environmental agreement) that was opened for signature at the Earth Summit held in Rio de Janeiro in 1992 and came into force in 1994.
The ultimate objective of the Convention is to “stabilize greenhouse gas concentrations in the atmosphere at a level that will prevent dangerous human interference with the climate system." It states that "such a level should be achieved within a time-frame sufficient to allow ecosystems to adapt naturally to climate change, to ensure that food production is not threatened, and to enable economic development to proceed in a sustainable manner.“ 194 countries signed the UNFCCC showing near universal agreement that there is a problem and that action is required against climate change.
The International Energy Agency (IEA) warned that "the world is moving for an unsustainable energy future" if governments do not adopt "urgent measures" to optimize the resources available [See the article AIE: mundo se encaminha para futuro energético insustentável (IEA: World is moving towards unsustainable energy future), published on website <http: />]. To optimize the energy resources available on the planet, we must begin the third energy revolution that should result in the implementation of a sustainable energy system on a global scale. In a sustainable energy system, the world oil production should be reduced by half and coal 90%, while renewable energy sources (solar, wind, biomass, tidal, geothermal, hydrogen, etc.) should grow nearly 4 times by 2030. In 2030, renewable energy should be about 70% of the total energy of the planet.
This is a presentation based on energy resources. I made this presentation for my physics investigation and class presentation on energy resources and I feel this is a very important topic for every student to know. I have mentioned the links from where I collected the information at the end of the ppresentation.
Lecture 5
Continuing Fossil Fuels & Renewable Resources
May 4, 2016
Oil
Like coal, most of the oil on Earth was formed millions of years ago
Certain warm shallow seas, such as the Gulf of Mexico and Tethys Sea were so ideal for life that organic material was formed faster than it could decompose
Large masses of organic material became buried at the sea bottom, were heated and pressurized, forming oil.
The present day distribution of oil lines up with these ancient shallow seas
Majority of oil reserves are in Middle Eastern countries
In elemental composition, oil is similar to coal
Mostly carbon, but also hydrogen, nitrogen, oxygen and sulfur
As a liquid, oil can be distilled (separated) into other fuels such as gasoline, kerosene, and diesel fuel
Oil Extraction
As a liquid, oil can be pumped directly out of the ground. This eliminates the need for mining.
A long drill is used to bore deep into the Earth to reach the deposit.
The hole is lined with a steel pipe and cement.
The top is outfitted with a collection of pipes and valves
The ease of transporting oil has enabled drilling at very remote locations
At its peak, Alaska accounted for about 25% of the U.S. oil production
It is transported to the southern ports of the state through the Alaska Oil Pipeline.
As a liquid, oil can also escape more easily, forming an oil spill
Oil spills are devastating to marine life
Penetrates through the fur and feathers of animals, reducing their ability to fly, float, and insulate themselves
Benthic organisms, living at the bottom of the sea, can be suffocated
Entire populations of krill and plankton can be wiped out
Oil Reserves
Of the fossil fuels, oil has been the most quickly depleted
Peak oil is defined as the point at which all known oil reserves have been tapped and production will begin declining in the following years.
The U.S. reached its peak production in the 1970s
The estimated date of worldwide peak oil is unknown
OPEC
Organization of Petroleum Exporting Countries (OPEC) is comprised of 13 countries.
Members: Algeria, Angola, Ecuador, Indonesia, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, United Arab Emirates, and Venezuela.
In 2010, OPEC holds about 77% of the entire world’s crude oil reserves.
The U.S. has only about 2% of the world’s proven oil reserves. China has 1.1% and India has 0.4%. Japan as none
It will be necessary to find alternatives to or other sources of crude oil to sustain the today’s usage.
Natural Gas
Natural gas is actually a mixtures of gases
50-90% methane
Smaller amounts of propane and butane
As a gas, it is the most difficult fossil fuel to transport
A supply of natural gas exists above most oil wells, however, if no pipelines are nearby, it will often simply be burned off.
Natural gas has a relatively small amount of pollution produced by burning it (Only two waste products-CO2 & Water vapor)
Natural Gas Extraction
Hydraulic Fracturing or Fracking-a controversial technique used ...
Climate change is any change in climate which is attributed directly or indirectly to human activity and that alters the composition of the global atmosphere (United Nations 1992). Climate change is caused by the increment of greenhouse gases in the atmosphere through the burning of fossil fuels and land use (United Nations 1992). This causes increased radiation of infrared rays back to the earth hence temperature increases through the greenhouse gas effect.
Climate change worldwide is affecting biophysical and social systems (Maitima. J. et al 2009). The spatial extent and intensity of these effects vary geographically from one place to another depending on the location in the global atmospheric systems, regional settings, land cover, land use patterns, topography and weather patterns (Maitima. J. et al 2009). These effects have become a major concern for most countries of the world due to their longterm implications and adverse effects on development activities with developing and underdeveloped nations being the most affected (ECOLAO 2012) Indigenous people are most vulnerable to impacts of climate change due to their high reliance on climate sensitive natural resources, inhabitation of fragile ecosystems and social, economic plus political marginalization (ECOLAO 2012).
The United Nations Framework Convention on Climate Change (UNFCCC) is an international environmental treaty (also known as a multilateral environmental agreement) that was opened for signature at the Earth Summit held in Rio de Janeiro in 1992 and came into force in 1994.
The ultimate objective of the Convention is to “stabilize greenhouse gas concentrations in the atmosphere at a level that will prevent dangerous human interference with the climate system." It states that "such a level should be achieved within a time-frame sufficient to allow ecosystems to adapt naturally to climate change, to ensure that food production is not threatened, and to enable economic development to proceed in a sustainable manner.“ 194 countries signed the UNFCCC showing near universal agreement that there is a problem and that action is required against climate change.
The International Energy Agency (IEA) warned that "the world is moving for an unsustainable energy future" if governments do not adopt "urgent measures" to optimize the resources available [See the article AIE: mundo se encaminha para futuro energético insustentável (IEA: World is moving towards unsustainable energy future), published on website <http: />]. To optimize the energy resources available on the planet, we must begin the third energy revolution that should result in the implementation of a sustainable energy system on a global scale. In a sustainable energy system, the world oil production should be reduced by half and coal 90%, while renewable energy sources (solar, wind, biomass, tidal, geothermal, hydrogen, etc.) should grow nearly 4 times by 2030. In 2030, renewable energy should be about 70% of the total energy of the planet.
This is a presentation based on energy resources. I made this presentation for my physics investigation and class presentation on energy resources and I feel this is a very important topic for every student to know. I have mentioned the links from where I collected the information at the end of the ppresentation.
Lecture 5
Continuing Fossil Fuels & Renewable Resources
May 4, 2016
Oil
Like coal, most of the oil on Earth was formed millions of years ago
Certain warm shallow seas, such as the Gulf of Mexico and Tethys Sea were so ideal for life that organic material was formed faster than it could decompose
Large masses of organic material became buried at the sea bottom, were heated and pressurized, forming oil.
The present day distribution of oil lines up with these ancient shallow seas
Majority of oil reserves are in Middle Eastern countries
In elemental composition, oil is similar to coal
Mostly carbon, but also hydrogen, nitrogen, oxygen and sulfur
As a liquid, oil can be distilled (separated) into other fuels such as gasoline, kerosene, and diesel fuel
Oil Extraction
As a liquid, oil can be pumped directly out of the ground. This eliminates the need for mining.
A long drill is used to bore deep into the Earth to reach the deposit.
The hole is lined with a steel pipe and cement.
The top is outfitted with a collection of pipes and valves
The ease of transporting oil has enabled drilling at very remote locations
At its peak, Alaska accounted for about 25% of the U.S. oil production
It is transported to the southern ports of the state through the Alaska Oil Pipeline.
As a liquid, oil can also escape more easily, forming an oil spill
Oil spills are devastating to marine life
Penetrates through the fur and feathers of animals, reducing their ability to fly, float, and insulate themselves
Benthic organisms, living at the bottom of the sea, can be suffocated
Entire populations of krill and plankton can be wiped out
Oil Reserves
Of the fossil fuels, oil has been the most quickly depleted
Peak oil is defined as the point at which all known oil reserves have been tapped and production will begin declining in the following years.
The U.S. reached its peak production in the 1970s
The estimated date of worldwide peak oil is unknown
OPEC
Organization of Petroleum Exporting Countries (OPEC) is comprised of 13 countries.
Members: Algeria, Angola, Ecuador, Indonesia, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, United Arab Emirates, and Venezuela.
In 2010, OPEC holds about 77% of the entire world’s crude oil reserves.
The U.S. has only about 2% of the world’s proven oil reserves. China has 1.1% and India has 0.4%. Japan as none
It will be necessary to find alternatives to or other sources of crude oil to sustain the today’s usage.
Natural Gas
Natural gas is actually a mixtures of gases
50-90% methane
Smaller amounts of propane and butane
As a gas, it is the most difficult fossil fuel to transport
A supply of natural gas exists above most oil wells, however, if no pipelines are nearby, it will often simply be burned off.
Natural gas has a relatively small amount of pollution produced by burning it (Only two waste products-CO2 & Water vapor)
Natural Gas Extraction
Hydraulic Fracturing or Fracking-a controversial technique used ...
An ever growing population means an ever growing requirement for energy. Nowadays, enormity of energy cannot be denied. It
is essential in every walk of life. Energy sources can be broadly classified as renewable and non renewable. Knowing the
dreadful fact that nonrenewable sources will eventually deplete, the importance of renewable sources cannot be underestimated.
The most important aspect while utilizing them is their impact on the environment. This paper briefly presents the importance
of renewable sources of energy owing to the backdrop of fossil fuel dilemma. Major emphasis is placed on the use of alternative
energy technologies. Some applications of renewable sources and future of energy is also discussed
The increased availability of biomedical data, particularly in the public domain, offers the opportunity to better understand human health and to develop effective therapeutics for a wide range of unmet medical needs. However, data scientists remain stymied by the fact that data remain hard to find and to productively reuse because data and their metadata i) are wholly inaccessible, ii) are in non-standard or incompatible representations, iii) do not conform to community standards, and iv) have unclear or highly restricted terms and conditions that preclude legitimate reuse. These limitations require a rethink on data can be made machine and AI-ready - the key motivation behind the FAIR Guiding Principles. Concurrently, while recent efforts have explored the use of deep learning to fuse disparate data into predictive models for a wide range of biomedical applications, these models often fail even when the correct answer is already known, and fail to explain individual predictions in terms that data scientists can appreciate. These limitations suggest that new methods to produce practical artificial intelligence are still needed.
In this talk, I will discuss our work in (1) building an integrative knowledge infrastructure to prepare FAIR and "AI-ready" data and services along with (2) neurosymbolic AI methods to improve the quality of predictions and to generate plausible explanations. Attention is given to standards, platforms, and methods to wrangle knowledge into simple, but effective semantic and latent representations, and to make these available into standards-compliant and discoverable interfaces that can be used in model building, validation, and explanation. Our work, and those of others in the field, creates a baseline for building trustworthy and easy to deploy AI models in biomedicine.
Bio
Dr. Michel Dumontier is the Distinguished Professor of Data Science at Maastricht University, founder and executive director of the Institute of Data Science, and co-founder of the FAIR (Findable, Accessible, Interoperable and Reusable) data principles. His research explores socio-technological approaches for responsible discovery science, which includes collaborative multi-modal knowledge graphs, privacy-preserving distributed data mining, and AI methods for drug discovery and personalized medicine. His work is supported through the Dutch National Research Agenda, the Netherlands Organisation for Scientific Research, Horizon Europe, the European Open Science Cloud, the US National Institutes of Health, and a Marie-Curie Innovative Training Network. He is the editor-in-chief for the journal Data Science and is internationally recognized for his contributions in bioinformatics, biomedical informatics, and semantic technologies including ontologies and linked data.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
2. Republic Act 9513 - Renewable Act of
2008)
AN ACT PROMOTING THE DEVELOPMENT, UTILIZATION AND
COMMERCIALIZATION OF RENEWABLE ENERGY RESOURCES AND FOR
OTHER PURPOSES
This Act shall be known as the "Renewable Energy Act of 2008".
(a) Accelerate the exploration and development of renewable energy
resources such as, but not limited to, biomass, solar, wind, hydro,
geothermal and ocean energy sources, including hybrid systems, to
achieve energy self-reliance, through the adoption of sustainable energy
development strategies to reduce the country's dependence on fossil fuels
and thereby minimize the country's exposure to price fluctuations in the
international markets, the effects of which spiral down to almost all sectors
of the economy;
3. What executive department is
responsible in energy resources?
The Philippines' Department of
Energy (Filipino: Kagawaran ng Enerhiya, abbreviated
as DOE) is the executive department of the Philippine
Government responsible for preparing, integrating,
manipulating, organizing, coordinating, supervising and
controlling all plans, programs, projects and activities of
the Government relative to energy exploration,
development, utilization, distribution and conservation.
4. Who created DOE?
The Department of Energy was created by
then President Marcos as he issued
Presidential Decree No. 1206 which created
the Ministry of Energy and attached the
National Power Corporation and Philippine
National Oil Company to this new agency.
5. Energy resources
Energy resources are the opportunities an
area offers to generate electricity based on its
natural conditions and circumstances. Some
of these energy resources are obvious; an
area might contain coal, oil, wood, or gas.
6. Some examples of
Renewable energy sources are
solar energy, wind energy, hydropower,
geothermal energy, and biomass energy.
These types of energy sources are
different from fossil fuels, such as coal, oil,
and natural gas.
8. Renewable energy is any energy source that
is naturally replenished, like that derived from
solar, wind, geothermal or hydroelectric
action. Energy produced from the refining of
biomass is also often classified as renewable.
Coal, oil or natural gas, on the other hand,
finite sources
9.
10.
11.
12. What is Fossil Fuels?
Fossil fuels are hydrocarbons,
primarily coal, fuel oil or natural gas,
formed from the remains of dead
plants and animals.
13. How fossil fuels are formed?
Fossil fuel is a general term for buried
combustible geologic deposits of organic
materials, formed from decayed plants and
animals that have been converted to crude oil,
coal, natural gas, or heavy oils by exposure to
heat and pressure in the earth's crust over
hundreds of millions of years.
14. Formation of fossil fuels
Crude oil, coal and gas are fossil fuels . They
were formed over millions of years, from the
remains of dead organisms: coal
was formed from dead trees and other plant
material. crude oil and gas were formed from
dead marine organisms.
15.
16.
17.
18. Examples of Fossil Fuels:
Coal: It is the primary fuel for the production of
electricity and is responsible for about 40% of the
electric power supply in the United States. The U.S.
also produces or mines about 12% of the coal used
with China leading in coal production at about 45%.
The burning of coal and the mining process is
harmful to the environment releasing air pollutants
such as sulfur dioxide, nitrogen oxide, and mercury.
19. Oil: Oil is the primary source for the world's
transportation. Most oil is pumped out of underground
reservoirs but may also be found in shale and tar sands.
Natural Gas: About 27% of U.S. energy is fueled by
natural gas. It is commonly used to produce heat or
electricity for buildings and industrial processes.
Petroleum: This is a liquid fuel made of hydrogen and
other liquid organic compounds.
Liquefied Petroleum Gas: Heavier than natural gas, but it
is in liquid form and can be easily transported and
20. Enumerate the various energy sources which can be broken down
into 2 broad categories: Nonrenewable
and Renewable.
Non-Renewable Sources
1. Coal
2. Oil
3. Natural Gas
4. Nuclear
Renewable Energy Sources
1. Solar
2. Wind
3. Hydroelectric
4. Biomass
5. Geothermal
21. QUESTIONS
Enumerate the following uses of energy.
“How important is energy to the
advancement of society and how do we
ensure self-sufficiency for the current and
future generations (energy
independence)?”
