Carbon is an essential element that cycles between the atmosphere, ocean, organisms, and geologic reservoirs as part of the carbon cycle. Photosynthesis incorporates carbon from the air and water into organic compounds, while respiration and decomposition release it back. Fossil fuels like coal and oil were formed from ancient plant and algae remains over millions of years. Burning fossil fuels returns carbon to the air, and limestone erosion also adds carbon back to the cycle through weathering. The carbon cycle continuously moves carbon between the biosphere and geosphere.
Carbon cycle ppt
definition of Carbon cycle ppt
types of Carbon cycle ppt
discovery of Carbon cycle ppt
importance of Carbon cycle ppt
steps of Carbon cycle ppt
carbon cycle in water
harmful effect of Carbon cycle ppt
Carbon cycle ppt
definition of Carbon cycle ppt
types of Carbon cycle ppt
discovery of Carbon cycle ppt
importance of Carbon cycle ppt
steps of Carbon cycle ppt
carbon cycle in water
harmful effect of Carbon cycle ppt
Environmental science Module 1 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author.
All of the presentations that i have uploaded are made by me for school projects from 9-12 grade.For most of them you actually need to have learned something to recite and what you see on the presentations are just hints.
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into various chemical forms as it circulates among the atmosphere and terrestrial and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification. The majority of Earth's atmosphere (78%) is nitrogen, making it the largest pool of nitrogen. However, atmospheric nitrogen has limited availability for biological use, leading to a scarcity of usable nitrogen in many types of ecosystems. The nitrogen cycle is of particular interest to ecologists because nitrogen availability can affect the rate of key ecosystem processes, including primary production and decomposition. Human activities such as fossil fuel combustion, use of artificial nitrogen fertilizers, and release of nitrogen in wastewater have dramatically altered the global nitrogen cycle.
Environmental science Module 1 Topic. This PPT is not a work of mine and was provided by our college professor during our graduation, so I am not sure about the original author. The credit goes to the Original author.
All of the presentations that i have uploaded are made by me for school projects from 9-12 grade.For most of them you actually need to have learned something to recite and what you see on the presentations are just hints.
The nitrogen cycle is the biogeochemical cycle by which nitrogen is converted into various chemical forms as it circulates among the atmosphere and terrestrial and marine ecosystems. The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification. The majority of Earth's atmosphere (78%) is nitrogen, making it the largest pool of nitrogen. However, atmospheric nitrogen has limited availability for biological use, leading to a scarcity of usable nitrogen in many types of ecosystems. The nitrogen cycle is of particular interest to ecologists because nitrogen availability can affect the rate of key ecosystem processes, including primary production and decomposition. Human activities such as fossil fuel combustion, use of artificial nitrogen fertilizers, and release of nitrogen in wastewater have dramatically altered the global nitrogen cycle.
Carbon is an essential element for all life forms on Earth. Whether these life forms
take in carbon to help manufacture food or release carbon as part of respiration, the
intake and output of carbon is a component of all plant and animal life.
The carbon cycle is vital to life on Earth. Nature tends to keep carbon levels balanced,
meaning that the amount of carbon naturally released from reservoirs is equal to the
amount that is naturally absorbed by reservoirs. Maintaining this carbon balance
allows the planet to remain hospitable for life. Scientists believe that humans have
upset this balance by burning fossil fuels, which has added more carbon to
the atmosphere than usual and led to climate change and global warming.
"Understanding the Carbon Cycle: Processes, Human Impacts, and Strategies for...MMariSelvam4
The carbon cycle is a critical component of Earth's environmental system, governing the movement and transformation of carbon through various reservoirs, including the atmosphere, oceans, soil, and living organisms. This complex cycle involves several key processes such as photosynthesis, respiration, decomposition, and carbon sequestration, each contributing to the regulation of carbon levels on the planet.
Human activities, particularly fossil fuel combustion and deforestation, have significantly altered the natural carbon cycle, leading to increased atmospheric carbon dioxide concentrations and driving climate change. Understanding the intricacies of the carbon cycle is essential for assessing the impacts of these changes and developing effective mitigation strategies.
By studying the carbon cycle, scientists can identify carbon sources and sinks, measure carbon fluxes, and predict future trends. This knowledge is crucial for crafting policies aimed at reducing carbon emissions, enhancing carbon storage, and promoting sustainable practices. The carbon cycle's interplay with climate systems, ecosystems, and human activities underscores its importance in maintaining a stable and healthy planet.
In-depth exploration of the carbon cycle reveals the delicate balance required to sustain life and the urgent need to address anthropogenic influences. Through research, education, and policy, we can work towards restoring equilibrium in the carbon cycle and ensuring a sustainable future for generations to come.
3. Carbon is virtually important
molecule in the carbon cycle.
Proteins, nucleic acids,
lipids, carbohydrates, and
other molecules essential to
life contain carbon.
4. Carbon is present in the atmosphere
as the gas carbon dioxide (CO2), which
makes up approximately 0.04% of the
atmosphere.
It is also present in the ocean and
fresh water as dissolved carbon
dioxide. Carbons are also present in
rocks such as limestone (CaCO3)
6. The global moment of
carbon between the abiotic
environment, including the
atmosphere and ocean, and
organisms is known as the
CARBON CYCLE.
7.
8. Step 1: PHOTOSYNTHESIS
• During photosynthesis, plants, algae, and
cyanobacteria remove Carbon dioxide from
the air and fix, or incorporate it into
complex organic compounds such as glucose.
• Photosynthesis incorporates carbon from
the abiotic into the biological compounds of
producers.
9. Step 2: DECOMPOSITION, ANIMAL & PLANT
RESPIRATION, SOIL MICROORGANISM
RESPIRATION.
• Many of the compounds are used as fuel for
cellular respiration by the producer that made
them, by a consumer that eats producer, or by a
decomposer that breaks down the remains of
the producer or consumer.
• The process of a cellular respiration returns
Carbon dioxide to the atmosphere. A similar
carbon cycle occurs in aquatic ecosystems
between aquatic organisms and dissolved
Carbon dioxide in water.
10. Step 3: PARTLY DECOMPOSED PLANT REMAINS
(COAL)
Millions of years ago vast
coal beds formed from the
bodies of ancient trees that
were buried and subjected to
anaerobic conditions before
they had fully decayed.
11. Step 4: MARINE PLANKTON REMAINS
• The oils of unicellular marine organisms
probably gave rise to the underground deposits
of oil and natural gas that accumulated in the
geologic past.
• Coal, oil, and natural gas, called fossil
fuels because they formed from the
remains of ancient organisms. Fossil fuels
are non- renewable resources. The Earth
has a finite or limited supply of these
resources.
12. Step 5: COMBUSTION (HUMAN & NATURAL)
The process of burning or
combustion, may return the carbon in
oil, coal, natural gas, and wood to the
atmosphere. In combustion, organic
molecules are rapidly oxidized
(combined with oxygen) and
converted carbon dioxide and water
with an accompanying release of light
and heat.
13. Step 6: BURIAL AND COMPACTION TO FORM
ROCK (LIMESTONE)
An even greater amount of carbon that
is stored for millions of years is
incorporated into the shells of marine
organisms. When these organisms die,
their shells sink to the ocean floor and
sediments cover them forming
cemented together to form limestone,
a meter thick.
14. Step 7: EROSION OF LIMESTONE TO FORM
DISSOLVED CO2
When the process of geologic uplift
expose limestone, chemical and
physical weathering processes slowly
erode it away. This returns carbon to
the water and atmosphere where it is
available to participate in the carbon
cycle once again.
15. Thus, photosynthesis removes
carbon from the abiotic
environment and incorporate it
into biological molecules while.
Cellular respiration, combustion,
and erosion of limestone return
carbon to the water and
atmosphere of the abiotic
environment.