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Carbon Cycle.

Published byHartanti Sudirman Modified over 5 years ago

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Presentation on theme: "Carbon Cycle."— Presentation transcript:

1 Carbon Cycle

2 Stop Discuss Carbon is an element. What is carbon?
commonly found as graphite, diamonds carbon = 50% of our dry weight  the term “carbon-based” life form

3 Carbon is found in 4 large areas called reservoirs.
carbon reservoir Carbon is found in 4 large areas called reservoirs. atmosphere carbon reservoir biosphere Discuss carbon reservoir Where is carbon found? oceans carbon reservoir sediments

4 C C C C C C C C C C C C C C C C C C C C C C C C atmosphere biosphere
The carbon cycle involves the transfer of carbon from carbon reservoir atmosphere C C C C one reservoir carbon reservoir biosphere C C C C to another. carbon reservoir oceans C C C C C C C C C C C C carbon reservoir sediments C What is the carbon cycle? C C C

5 4 Main Carbon Reservoirs
atmosphere C 4 Main Carbon Reservoirs carbon reservoir biosphere C carbon reservoir oceans C Which reservoir contains the most carbon? carbon reservoir sediments C

6 Oceans contain the largest amount of carbon near the Earth’s surface.
carbon reservoir oceans C C C C C C C C C C C C C C

7 Carbon Cycle Carbon is continuously exchanged and recycled among plants and animals, soil, air and oceans

8 Carbon Dioxide… Is the basis of the carbon cycle
comprises 0.03% of earth’s atmosphere Is a product of combustion (oil, gasoline, coal, natural gas, wood) and respiration There is usually more CO2 in city air than country air. Why??

9 CO2/O2 Cycle Carbon is cycled through the atmosphere and biosphere reservoirs through photosynthesis and respiration. CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 O2 O2 O2

10 Carbon is also cycled between the atmosphere and oceans reservoirs.
CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2

11 What process is being illustrated?
Carbon also cycles between the ocean and sediment reservoirs. What process is being illustrated? CO2 CaCO3

12 C C C C C C C C C C C C C C C C C C C C C C C C atmosphere biosphere
Carbon is continuously recycled and exchanged from carbon reservoir atmosphere respiration C photosynthesis C C C carbon reservoir biosphere one reservoir respiration C C C C to another. carbon reservoir oceans C C decomposition C C C C C C C C C C carbon reservoir sediments C C C C

13 The carbon cycle is relatively balanced among all the carbon reservoirs.
Human activity has unquestionably changed the dynamics of the carbon cycle by increasing concentrations of CO2 in the atmospheric reservoir.

14

15

16 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2 CO2

17 Carbon is directly related to…
climate change greenhouse gases pollution high energy demands

18 gases in the atmosphere which contribute to the greenhouse (warming) effect
What are greenhouse gases?

19 What are some examples of greenhouse gases?
include CO2, CH4 (methane), nitrous oxide, chlorofluorocarbons (CFCs), and water vapor What are some examples of greenhouse gases?

20 trap heat near the Earth’s surface
and can raise the average global temperature of the Earth What do these gases do?

21

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