SlideShare a Scribd company logo
1 of 29
Download to read offline
What Is Carbon?
An element
The basis of life of earth
Found in rocks, oceans, atmosphere
Carbon Cycle
The same carbon atoms are used
repeatedly on earth. They cycle between
the earth and the atmosphere.
Plants Use Carbon Dioxide
Plants pull carbon dioxide from the
atmosphere and use it to make food –—
photosynthesis.
The carbon becomes part of the plant
(stored food).
Animals Eat Plants
When organisms eat plants, they take in
the carbon and some of it becomes part
of their own bodies.
Plants and Animal Die
When plants and animals die, most of
their bodies are decomposed and
carbon atoms are returned to the
atmosphere.
Some are not decomposed fully and end
up in deposits underground (oil, coal,
etc.).
Carbon Slowly Returns to Atmosphere
Carbon in rocks and underground
deposits is released very slowly into the
atmosphere.
This process takes many years.
Cycle – Repeats Over and
Over and Over and Over …
Carbon Cycle Diagram
Carbon in Atmosphere
Plants use
carbon to make
food
Animals eat
plants and
take in
carbon
Plants and
animals die
Decomposers
break down dead
things, releasing
carbon to
atmosphere and
soil
Bodies not
decomposed —
after many
years, become
part of oil or
coal deposits
Fossil fuels are
burned; carbon
is returned to
atmosphere
Carbon slowly
released from
these substances
returns to
atmosphere
Carbon in Oceans
 Additional carbon is stored in the ocean.
 Many animals pull carbon from water to use in
shells, etc.
 Animals die and carbon substances are
deposited at the bottom of the ocean.
 Oceans contain earth’s largest store of carbon.
The Carbon Cycle
Human Impact
Fossil fuels release carbon stores very
slowly
Burning anything releases more carbon
into atmosphere — especially fossil fuels
Increased carbon dioxide in atmosphere
increases global warming
 Fewer plants mean less CO2 removed
from atmosphere
What We Need to Do
Burn less, especially fossil fuels
Promote plant life, especially trees
Carbon reservoirs
Carbon Cycle
Carbon is released into the
atmosphere in several ways
 Respiration by plants and animals.
 Decay of animal and plant matter.
 Combustion of organic material
 Production of cement.
 The ocean releases CO2 into the atmosphere.
 Volcanic eruptions and metamorphism
Carbon is taken from the
atmosphere in several ways
Photosynthesis.
The oceans when the seawater becomes
cooler, more CO2 dissolve and become
carbonic acid.
In the upper ocean areas organisms
convert reduced carbon to tissues, or
carbonates.
Photosynthesis
CO2 + H2O + sunlight  CH2O + O2
Respiration
CH2O + O2  CO2 + H2O + energy
Combustion or Oxidization of
hydrocarbon
CH4 + 2 O2  CO2 + 2 H2O + energy
Human Impacts on the Carbon
Cycle
Burning fossil fuels have serious impact
on the carbon cycle.
Fossil Fuel
86% of global primary energy
consumption is fossil fuels.
Fossil Fuels
• Petroleum
• Natural
Gas
• Coal
CO2
Concentration
Pre-Industrial value: 280 ppm (600 billion tons)
Current value: 380 ppm (800 billion tons)
Critical value: 560 ppm (1200 billion tons)
Organic Carbon
Hydrocarbons: CH4
Carbohydrate: CH2O
Inorganic carbon
Carbon Dioxide: CO2
Calcium Carbonate: CaCO3
Mandale Limestone Quarry
Carbon reservoirs
•The atmosphere.
•The biosphere (include fresh water systems and non-living
organic material, such as soil carbon).
•The oceans ( including dissolved inorganic carbon and
living and non-living marine biota).
•The lithosphere (sediments, Earth core including fossil fuels).
Carbon
Carbon exists in the nonliving
environment as:
 Carbon dioxide (CO2)
 Carbonic acid ( HCO3
−
)
 Carbonate rocks (limestone and coral =
CaCO3)
 Deposits of Fossil fuels
 Dead organic matter
Carbon cycle (ANIMATED)

More Related Content

What's hot

Energy flow in ecosystem
Energy flow in ecosystemEnergy flow in ecosystem
Energy flow in ecosystemNanda Palit
 
Environmental Studies
Environmental StudiesEnvironmental Studies
Environmental StudiesSian Ferguson
 
Human effect in environment
Human effect in environmentHuman effect in environment
Human effect in environmentPramoda Raj
 
FOOD CHAIN & FOOD WEB
FOOD CHAIN & FOOD WEBFOOD CHAIN & FOOD WEB
FOOD CHAIN & FOOD WEBpatel sahebb
 
Human Impact On The Environment
Human Impact On The EnvironmentHuman Impact On The Environment
Human Impact On The Environmentsacklax40
 
Energy flow in ecosystems
Energy flow in ecosystemsEnergy flow in ecosystems
Energy flow in ecosystemspcalabri
 
Biogeochemical cycle
Biogeochemical cycleBiogeochemical cycle
Biogeochemical cycleJaxy Peilun
 
Oxygen cycle and Carbon cycle
Oxygen cycle and Carbon cycleOxygen cycle and Carbon cycle
Oxygen cycle and Carbon cycleJefte Galut
 
Unit 12. human impact in ecosystems
Unit 12. human impact in ecosystemsUnit 12. human impact in ecosystems
Unit 12. human impact in ecosystemsjbonillacarmona
 
Acid rain, ozone depletion, Global warming
Acid rain, ozone depletion, Global warmingAcid rain, ozone depletion, Global warming
Acid rain, ozone depletion, Global warmingNirwair Bajwa
 
Global warming
Global warmingGlobal warming
Global warmingPraveen P
 

What's hot (20)

Biogeochemical cycle
Biogeochemical cycle Biogeochemical cycle
Biogeochemical cycle
 
Energy flow in ecosystem
Energy flow in ecosystemEnergy flow in ecosystem
Energy flow in ecosystem
 
Environmental Studies
Environmental StudiesEnvironmental Studies
Environmental Studies
 
Carbon cycle (1)
Carbon cycle (1)Carbon cycle (1)
Carbon cycle (1)
 
Biosphere
BiosphereBiosphere
Biosphere
 
Human effect in environment
Human effect in environmentHuman effect in environment
Human effect in environment
 
FOOD CHAIN & FOOD WEB
FOOD CHAIN & FOOD WEBFOOD CHAIN & FOOD WEB
FOOD CHAIN & FOOD WEB
 
Human Impact On The Environment
Human Impact On The EnvironmentHuman Impact On The Environment
Human Impact On The Environment
 
Carbon cycle
Carbon cycleCarbon cycle
Carbon cycle
 
Impacts of mining
Impacts of miningImpacts of mining
Impacts of mining
 
Energy flow in ecosystems
Energy flow in ecosystemsEnergy flow in ecosystems
Energy flow in ecosystems
 
Atmosphere
AtmosphereAtmosphere
Atmosphere
 
Biogeochemical cycle
Biogeochemical cycleBiogeochemical cycle
Biogeochemical cycle
 
Oxygen cycle and Carbon cycle
Oxygen cycle and Carbon cycleOxygen cycle and Carbon cycle
Oxygen cycle and Carbon cycle
 
Unit 12. human impact in ecosystems
Unit 12. human impact in ecosystemsUnit 12. human impact in ecosystems
Unit 12. human impact in ecosystems
 
Acid rain, ozone depletion, Global warming
Acid rain, ozone depletion, Global warmingAcid rain, ozone depletion, Global warming
Acid rain, ozone depletion, Global warming
 
Biosphere
BiosphereBiosphere
Biosphere
 
Ecological pyramids
Ecological pyramidsEcological pyramids
Ecological pyramids
 
Biogeochemical cycles
Biogeochemical cyclesBiogeochemical cycles
Biogeochemical cycles
 
Global warming
Global warmingGlobal warming
Global warming
 

Viewers also liked

Viewers also liked (7)

Carban cycle
Carban cycleCarban cycle
Carban cycle
 
C carbon cycle last
C carbon cycle lastC carbon cycle last
C carbon cycle last
 
Carbon cycle
Carbon cycleCarbon cycle
Carbon cycle
 
CARBON AND NITROGEN CYCLES (Teach)
CARBON AND NITROGEN CYCLES (Teach)CARBON AND NITROGEN CYCLES (Teach)
CARBON AND NITROGEN CYCLES (Teach)
 
The Carbon Cycle
The Carbon CycleThe Carbon Cycle
The Carbon Cycle
 
Carbon cycle
Carbon cycleCarbon cycle
Carbon cycle
 
CARBON CYCLE (teach)
CARBON CYCLE (teach)CARBON CYCLE (teach)
CARBON CYCLE (teach)
 

Similar to Carbon cycle (ANIMATED)

CARBON CYCLE ENVIRONMENTAL SCIENCE OF NATURE
CARBON CYCLE ENVIRONMENTAL SCIENCE OF NATURECARBON CYCLE ENVIRONMENTAL SCIENCE OF NATURE
CARBON CYCLE ENVIRONMENTAL SCIENCE OF NATUREPILLOPATEL
 
Carbon_Cycle.ppt
Carbon_Cycle.pptCarbon_Cycle.ppt
Carbon_Cycle.pptSVarshitha2
 
Biogiochemical cycle ppt
Biogiochemical cycle pptBiogiochemical cycle ppt
Biogiochemical cycle pptUrmila31
 
biogeochemical_cycles_chapter_5_1.ppt
biogeochemical_cycles_chapter_5_1.pptbiogeochemical_cycles_chapter_5_1.ppt
biogeochemical_cycles_chapter_5_1.pptLiezlValiente1
 
Biogeochemical cycles chapter_5
Biogeochemical cycles chapter_5Biogeochemical cycles chapter_5
Biogeochemical cycles chapter_5SaiEshwarRampelli
 
The carbon cycle finalized
The carbon cycle finalizedThe carbon cycle finalized
The carbon cycle finalizedgiovanniveitch
 
Photosynthesis part 3
Photosynthesis part 3Photosynthesis part 3
Photosynthesis part 3Maria Donohue
 
Photosynthesis global
Photosynthesis globalPhotosynthesis global
Photosynthesis globalMaria Donohue
 
Photosynthesis part 3
Photosynthesis part 3Photosynthesis part 3
Photosynthesis part 3Maria Donohue
 
The Carbon Cycle
The Carbon CycleThe Carbon Cycle
The Carbon CycleAada
 

Similar to Carbon cycle (ANIMATED) (20)

Carbon cycle
Carbon cycleCarbon cycle
Carbon cycle
 
CARBON CYCLE ENVIRONMENTAL SCIENCE OF NATURE
CARBON CYCLE ENVIRONMENTAL SCIENCE OF NATURECARBON CYCLE ENVIRONMENTAL SCIENCE OF NATURE
CARBON CYCLE ENVIRONMENTAL SCIENCE OF NATURE
 
Carbon_Cycle.ppt
Carbon_Cycle.pptCarbon_Cycle.ppt
Carbon_Cycle.ppt
 
Carbon_Cycle.ppt
Carbon_Cycle.pptCarbon_Cycle.ppt
Carbon_Cycle.ppt
 
Carbon_Cycle.ppt
Carbon_Cycle.pptCarbon_Cycle.ppt
Carbon_Cycle.ppt
 
Carbon cycle
Carbon cycle Carbon cycle
Carbon cycle
 
THE-CARBON-CYCLE.pptx
THE-CARBON-CYCLE.pptxTHE-CARBON-CYCLE.pptx
THE-CARBON-CYCLE.pptx
 
Biogiochemical cycle ppt
Biogiochemical cycle pptBiogiochemical cycle ppt
Biogiochemical cycle ppt
 
Carbon cycle
Carbon cycleCarbon cycle
Carbon cycle
 
biogeochemical_cycles_chapter_5_1.ppt
biogeochemical_cycles_chapter_5_1.pptbiogeochemical_cycles_chapter_5_1.ppt
biogeochemical_cycles_chapter_5_1.ppt
 
Biogeochemical cycles chapter_5
Biogeochemical cycles chapter_5Biogeochemical cycles chapter_5
Biogeochemical cycles chapter_5
 
Photosynthesis3
Photosynthesis3Photosynthesis3
Photosynthesis3
 
carbon cycle ppt 2.pptx
carbon cycle ppt 2.pptxcarbon cycle ppt 2.pptx
carbon cycle ppt 2.pptx
 
The carbon cycle finalized
The carbon cycle finalizedThe carbon cycle finalized
The carbon cycle finalized
 
Photosynthesis part 3
Photosynthesis part 3Photosynthesis part 3
Photosynthesis part 3
 
Carbon Cycle
Carbon CycleCarbon Cycle
Carbon Cycle
 
Carbon cycle
Carbon cycleCarbon cycle
Carbon cycle
 
Photosynthesis global
Photosynthesis globalPhotosynthesis global
Photosynthesis global
 
Photosynthesis part 3
Photosynthesis part 3Photosynthesis part 3
Photosynthesis part 3
 
The Carbon Cycle
The Carbon CycleThe Carbon Cycle
The Carbon Cycle
 

More from Poonam Singh (20)

Diabetes
DiabetesDiabetes
Diabetes
 
Polynomials
PolynomialsPolynomials
Polynomials
 
Advertising
Advertising Advertising
Advertising
 
old age
old ageold age
old age
 
Chemistry
ChemistryChemistry
Chemistry
 
Diabetes mellitus
Diabetes mellitusDiabetes mellitus
Diabetes mellitus
 
WATER CRISIS “Prediction of 3rd world war”
WATER CRISIS “Prediction of 3rd world war”WATER CRISIS “Prediction of 3rd world war”
WATER CRISIS “Prediction of 3rd world war”
 
Issue of Shares
Issue of SharesIssue of Shares
Issue of Shares
 
My experience my values 7th
My experience my values 7thMy experience my values 7th
My experience my values 7th
 
Solid
SolidSolid
Solid
 
Smart class
Smart classSmart class
Smart class
 
S107
S107S107
S107
 
S104
S104S104
S104
 
Mera anubhav meri siksha 7th
Mera anubhav meri siksha 7thMera anubhav meri siksha 7th
Mera anubhav meri siksha 7th
 
S103
S103S103
S103
 
S102
S102S102
S102
 
S101
S101S101
S101
 
Projectile motion
Projectile motionProjectile motion
Projectile motion
 
Mansi
MansiMansi
Mansi
 
Gravitation
GravitationGravitation
Gravitation
 

Recently uploaded

How to Fix XML SyntaxError in Odoo the 17
How to Fix XML SyntaxError in Odoo the 17How to Fix XML SyntaxError in Odoo the 17
How to Fix XML SyntaxError in Odoo the 17Celine George
 
Team Lead Succeed – Helping you and your team achieve high-performance teamwo...
Team Lead Succeed – Helping you and your team achieve high-performance teamwo...Team Lead Succeed – Helping you and your team achieve high-performance teamwo...
Team Lead Succeed – Helping you and your team achieve high-performance teamwo...Association for Project Management
 
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptxQ4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptxlancelewisportillo
 
BIOCHEMISTRY-CARBOHYDRATE METABOLISM CHAPTER 2.pptx
BIOCHEMISTRY-CARBOHYDRATE METABOLISM CHAPTER 2.pptxBIOCHEMISTRY-CARBOHYDRATE METABOLISM CHAPTER 2.pptx
BIOCHEMISTRY-CARBOHYDRATE METABOLISM CHAPTER 2.pptxSayali Powar
 
Scientific Writing :Research Discourse
Scientific  Writing :Research  DiscourseScientific  Writing :Research  Discourse
Scientific Writing :Research DiscourseAnita GoswamiGiri
 
ARTERIAL BLOOD GAS ANALYSIS........pptx
ARTERIAL BLOOD  GAS ANALYSIS........pptxARTERIAL BLOOD  GAS ANALYSIS........pptx
ARTERIAL BLOOD GAS ANALYSIS........pptxAneriPatwari
 
ICS2208 Lecture6 Notes for SL spaces.pdf
ICS2208 Lecture6 Notes for SL spaces.pdfICS2208 Lecture6 Notes for SL spaces.pdf
ICS2208 Lecture6 Notes for SL spaces.pdfVanessa Camilleri
 
How to Make a Duplicate of Your Odoo 17 Database
How to Make a Duplicate of Your Odoo 17 DatabaseHow to Make a Duplicate of Your Odoo 17 Database
How to Make a Duplicate of Your Odoo 17 DatabaseCeline George
 
DIFFERENT BASKETRY IN THE PHILIPPINES PPT.pptx
DIFFERENT BASKETRY IN THE PHILIPPINES PPT.pptxDIFFERENT BASKETRY IN THE PHILIPPINES PPT.pptx
DIFFERENT BASKETRY IN THE PHILIPPINES PPT.pptxMichelleTuguinay1
 
4.16.24 21st Century Movements for Black Lives.pptx
4.16.24 21st Century Movements for Black Lives.pptx4.16.24 21st Century Movements for Black Lives.pptx
4.16.24 21st Century Movements for Black Lives.pptxmary850239
 
Grade Three -ELLNA-REVIEWER-ENGLISH.pptx
Grade Three -ELLNA-REVIEWER-ENGLISH.pptxGrade Three -ELLNA-REVIEWER-ENGLISH.pptx
Grade Three -ELLNA-REVIEWER-ENGLISH.pptxkarenfajardo43
 
ICS 2208 Lecture Slide Notes for Topic 6
ICS 2208 Lecture Slide Notes for Topic 6ICS 2208 Lecture Slide Notes for Topic 6
ICS 2208 Lecture Slide Notes for Topic 6Vanessa Camilleri
 
Textual Evidence in Reading and Writing of SHS
Textual Evidence in Reading and Writing of SHSTextual Evidence in Reading and Writing of SHS
Textual Evidence in Reading and Writing of SHSMae Pangan
 
Active Learning Strategies (in short ALS).pdf
Active Learning Strategies (in short ALS).pdfActive Learning Strategies (in short ALS).pdf
Active Learning Strategies (in short ALS).pdfPatidar M
 
Oppenheimer Film Discussion for Philosophy and Film
Oppenheimer Film Discussion for Philosophy and FilmOppenheimer Film Discussion for Philosophy and Film
Oppenheimer Film Discussion for Philosophy and FilmStan Meyer
 
Narcotic and Non Narcotic Analgesic..pdf
Narcotic and Non Narcotic Analgesic..pdfNarcotic and Non Narcotic Analgesic..pdf
Narcotic and Non Narcotic Analgesic..pdfPrerana Jadhav
 
Beauty Amidst the Bytes_ Unearthing Unexpected Advantages of the Digital Wast...
Beauty Amidst the Bytes_ Unearthing Unexpected Advantages of the Digital Wast...Beauty Amidst the Bytes_ Unearthing Unexpected Advantages of the Digital Wast...
Beauty Amidst the Bytes_ Unearthing Unexpected Advantages of the Digital Wast...DhatriParmar
 
Q-Factor General Quiz-7th April 2024, Quiz Club NITW
Q-Factor General Quiz-7th April 2024, Quiz Club NITWQ-Factor General Quiz-7th April 2024, Quiz Club NITW
Q-Factor General Quiz-7th April 2024, Quiz Club NITWQuiz Club NITW
 

Recently uploaded (20)

Mattingly "AI & Prompt Design: Large Language Models"
Mattingly "AI & Prompt Design: Large Language Models"Mattingly "AI & Prompt Design: Large Language Models"
Mattingly "AI & Prompt Design: Large Language Models"
 
How to Fix XML SyntaxError in Odoo the 17
How to Fix XML SyntaxError in Odoo the 17How to Fix XML SyntaxError in Odoo the 17
How to Fix XML SyntaxError in Odoo the 17
 
Team Lead Succeed – Helping you and your team achieve high-performance teamwo...
Team Lead Succeed – Helping you and your team achieve high-performance teamwo...Team Lead Succeed – Helping you and your team achieve high-performance teamwo...
Team Lead Succeed – Helping you and your team achieve high-performance teamwo...
 
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptxQ4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
Q4-PPT-Music9_Lesson-1-Romantic-Opera.pptx
 
BIOCHEMISTRY-CARBOHYDRATE METABOLISM CHAPTER 2.pptx
BIOCHEMISTRY-CARBOHYDRATE METABOLISM CHAPTER 2.pptxBIOCHEMISTRY-CARBOHYDRATE METABOLISM CHAPTER 2.pptx
BIOCHEMISTRY-CARBOHYDRATE METABOLISM CHAPTER 2.pptx
 
Scientific Writing :Research Discourse
Scientific  Writing :Research  DiscourseScientific  Writing :Research  Discourse
Scientific Writing :Research Discourse
 
ARTERIAL BLOOD GAS ANALYSIS........pptx
ARTERIAL BLOOD  GAS ANALYSIS........pptxARTERIAL BLOOD  GAS ANALYSIS........pptx
ARTERIAL BLOOD GAS ANALYSIS........pptx
 
ICS2208 Lecture6 Notes for SL spaces.pdf
ICS2208 Lecture6 Notes for SL spaces.pdfICS2208 Lecture6 Notes for SL spaces.pdf
ICS2208 Lecture6 Notes for SL spaces.pdf
 
How to Make a Duplicate of Your Odoo 17 Database
How to Make a Duplicate of Your Odoo 17 DatabaseHow to Make a Duplicate of Your Odoo 17 Database
How to Make a Duplicate of Your Odoo 17 Database
 
DIFFERENT BASKETRY IN THE PHILIPPINES PPT.pptx
DIFFERENT BASKETRY IN THE PHILIPPINES PPT.pptxDIFFERENT BASKETRY IN THE PHILIPPINES PPT.pptx
DIFFERENT BASKETRY IN THE PHILIPPINES PPT.pptx
 
4.16.24 21st Century Movements for Black Lives.pptx
4.16.24 21st Century Movements for Black Lives.pptx4.16.24 21st Century Movements for Black Lives.pptx
4.16.24 21st Century Movements for Black Lives.pptx
 
Grade Three -ELLNA-REVIEWER-ENGLISH.pptx
Grade Three -ELLNA-REVIEWER-ENGLISH.pptxGrade Three -ELLNA-REVIEWER-ENGLISH.pptx
Grade Three -ELLNA-REVIEWER-ENGLISH.pptx
 
ICS 2208 Lecture Slide Notes for Topic 6
ICS 2208 Lecture Slide Notes for Topic 6ICS 2208 Lecture Slide Notes for Topic 6
ICS 2208 Lecture Slide Notes for Topic 6
 
Textual Evidence in Reading and Writing of SHS
Textual Evidence in Reading and Writing of SHSTextual Evidence in Reading and Writing of SHS
Textual Evidence in Reading and Writing of SHS
 
Active Learning Strategies (in short ALS).pdf
Active Learning Strategies (in short ALS).pdfActive Learning Strategies (in short ALS).pdf
Active Learning Strategies (in short ALS).pdf
 
Oppenheimer Film Discussion for Philosophy and Film
Oppenheimer Film Discussion for Philosophy and FilmOppenheimer Film Discussion for Philosophy and Film
Oppenheimer Film Discussion for Philosophy and Film
 
Narcotic and Non Narcotic Analgesic..pdf
Narcotic and Non Narcotic Analgesic..pdfNarcotic and Non Narcotic Analgesic..pdf
Narcotic and Non Narcotic Analgesic..pdf
 
Beauty Amidst the Bytes_ Unearthing Unexpected Advantages of the Digital Wast...
Beauty Amidst the Bytes_ Unearthing Unexpected Advantages of the Digital Wast...Beauty Amidst the Bytes_ Unearthing Unexpected Advantages of the Digital Wast...
Beauty Amidst the Bytes_ Unearthing Unexpected Advantages of the Digital Wast...
 
prashanth updated resume 2024 for Teaching Profession
prashanth updated resume 2024 for Teaching Professionprashanth updated resume 2024 for Teaching Profession
prashanth updated resume 2024 for Teaching Profession
 
Q-Factor General Quiz-7th April 2024, Quiz Club NITW
Q-Factor General Quiz-7th April 2024, Quiz Club NITWQ-Factor General Quiz-7th April 2024, Quiz Club NITW
Q-Factor General Quiz-7th April 2024, Quiz Club NITW
 

Carbon cycle (ANIMATED)

  • 1.
  • 2. What Is Carbon? An element The basis of life of earth Found in rocks, oceans, atmosphere
  • 3. Carbon Cycle The same carbon atoms are used repeatedly on earth. They cycle between the earth and the atmosphere.
  • 4. Plants Use Carbon Dioxide Plants pull carbon dioxide from the atmosphere and use it to make food –— photosynthesis. The carbon becomes part of the plant (stored food).
  • 5. Animals Eat Plants When organisms eat plants, they take in the carbon and some of it becomes part of their own bodies.
  • 6. Plants and Animal Die When plants and animals die, most of their bodies are decomposed and carbon atoms are returned to the atmosphere. Some are not decomposed fully and end up in deposits underground (oil, coal, etc.).
  • 7. Carbon Slowly Returns to Atmosphere Carbon in rocks and underground deposits is released very slowly into the atmosphere. This process takes many years.
  • 8. Cycle – Repeats Over and Over and Over and Over …
  • 9. Carbon Cycle Diagram Carbon in Atmosphere Plants use carbon to make food Animals eat plants and take in carbon Plants and animals die Decomposers break down dead things, releasing carbon to atmosphere and soil Bodies not decomposed — after many years, become part of oil or coal deposits Fossil fuels are burned; carbon is returned to atmosphere Carbon slowly released from these substances returns to atmosphere
  • 10. Carbon in Oceans  Additional carbon is stored in the ocean.  Many animals pull carbon from water to use in shells, etc.  Animals die and carbon substances are deposited at the bottom of the ocean.  Oceans contain earth’s largest store of carbon.
  • 12. Human Impact Fossil fuels release carbon stores very slowly Burning anything releases more carbon into atmosphere — especially fossil fuels Increased carbon dioxide in atmosphere increases global warming  Fewer plants mean less CO2 removed from atmosphere
  • 13. What We Need to Do Burn less, especially fossil fuels Promote plant life, especially trees
  • 16. Carbon is released into the atmosphere in several ways  Respiration by plants and animals.  Decay of animal and plant matter.  Combustion of organic material  Production of cement.  The ocean releases CO2 into the atmosphere.  Volcanic eruptions and metamorphism
  • 17. Carbon is taken from the atmosphere in several ways Photosynthesis. The oceans when the seawater becomes cooler, more CO2 dissolve and become carbonic acid. In the upper ocean areas organisms convert reduced carbon to tissues, or carbonates.
  • 18. Photosynthesis CO2 + H2O + sunlight  CH2O + O2
  • 19. Respiration CH2O + O2  CO2 + H2O + energy
  • 20. Combustion or Oxidization of hydrocarbon CH4 + 2 O2  CO2 + 2 H2O + energy
  • 21. Human Impacts on the Carbon Cycle Burning fossil fuels have serious impact on the carbon cycle.
  • 22. Fossil Fuel 86% of global primary energy consumption is fossil fuels.
  • 23. Fossil Fuels • Petroleum • Natural Gas • Coal
  • 24. CO2 Concentration Pre-Industrial value: 280 ppm (600 billion tons) Current value: 380 ppm (800 billion tons) Critical value: 560 ppm (1200 billion tons)
  • 26. Inorganic carbon Carbon Dioxide: CO2 Calcium Carbonate: CaCO3 Mandale Limestone Quarry
  • 27. Carbon reservoirs •The atmosphere. •The biosphere (include fresh water systems and non-living organic material, such as soil carbon). •The oceans ( including dissolved inorganic carbon and living and non-living marine biota). •The lithosphere (sediments, Earth core including fossil fuels).
  • 28. Carbon Carbon exists in the nonliving environment as:  Carbon dioxide (CO2)  Carbonic acid ( HCO3 − )  Carbonate rocks (limestone and coral = CaCO3)  Deposits of Fossil fuels  Dead organic matter

Editor's Notes

  1. Parts of the Earth system where carbon is stored is called carbon reservoirs
  2. The movement of carbon, in its many forms, between the biosphere, atmosphere, oceans, and geosphere is described by the carbon cycle.
  3. Through the respiration performed by plants and animals. Through the decay of animal and plant matter. Through combustion of organic material which oxidizes the carbon it contains. Production of cement. At the surface of the oceans where the water becomes warmer, dissolved carbon dioxide is released back into the atmosphere. Volcanic eruptions and metamorphism release gases into the atmosphere.