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THE CARBON CYCLE TEK: Diagram abiotic cycles, including the carbon, nitrogen and rock THE CARBON CYCLE TEK: Diagram abiotic cycles, including the carbon, nitrogen and rock

THE CARBON CYCLE TEK: Diagram abiotic cycles, including the carbon, nitrogen and rock - PowerPoint Presentation

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THE CARBON CYCLE TEK: Diagram abiotic cycles, including the carbon, nitrogen and rock - PPT Presentation

What Is Carbon An element 6 protons 6 neutrons The basis of life of earth Found in all earth systems Carbon Cycle The same carbon atoms are used repeatedly on earth They cycle between the atmosphere hydrosphere geosphere and biosphere ID: 659066

atmosphere carbon cycle plants carbon atmosphere plants cycle release animals ocean slowly reduce die earth food consume dioxide part

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Presentation Transcript

Slide1

THE CARBON CYCLE

TEK: Diagram abiotic cycles, including the carbon, nitrogen and rock cycles.Slide2

What Is Carbon?

An element: 6 protons, 6 neutrons

The basis of life of earth

Found in all earth systemsSlide3

Carbon Cycle

The same carbon atoms are used repeatedly on earth. They cycle between the atmosphere, hydrosphere, geosphere and biosphere.

Slide4

Processes that transfer carbon

Between earth systems

- Photosynthesis

- Respiration

- Consumption

- Decomposition

- Combustion (Burning)

- Weathering

(rocks break down and release carbon)

- Dissolve/Vaporize

(Between ocean and atmosphere)

- DepositionSlide5

Plants consume and release Carbon Dioxide

Plants pull carbon from the atmosphere

or

hydrosphere and use it to make food –— photosynthesis.

Plants release carbon by respiration.Slide6

Animals consume and release carbon

When organisms eat (consume) plants or other organisms, they take in the carbon and some of it becomes part of their own bodies.

When they breath (respiration) they release carbon.Slide7

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 geosphere deposits underground (soil, oil, coal, etc.) or at the bottom of ocean

.Slide8

Natural combustion

Forest and grass fires are a natural, required part of the carbon cycle that release carbon into the atmosphere and geosphere.

Fire returns carbon to the soil and “cleans out” unhealthy plants, allowing new plants to grow.Slide9

Carbon Slowly Returns to Atmosphere

Carbon in rocks and underground deposits is released very slowly into the atmosphere.

This process takes many years and is usually caused by weathering.Slide10

Carbon in Oceans

Oceans store large amounts of carbon.

Largest exchange of carbon in carbon cycle is the dissolving and vaporization of carbon dioxide between the atmosphere and ocean surface.Slide11

Oceans store carbon on ocean floor.

Many animals pull carbon from water to use in shells, etc. When these animals die, the carbon substances are deposited at the bottom of the ocean.Slide12

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 (Unbalanced)

Carbon slowly released from these substances returns to atmosphereSlide13

Balanced Carbon CycleSlide14

Unbalanced Cycle - Human Impact

Under balanced conditions, fossil fuels release carbon stores very slowly into atmosphere.

When humans

burn

fossil fuels, it releases a tremendous amount of carbon into the atmosphere over a very short time span.

Increased carbon dioxide in atmosphere increases global warming

Fewer plants mean less CO

2 removed from atmosphereSlide15

Un-balanced Carbon CycleSlide16

What is your carbon footprint?

A carbon footprint is the amount of carbon emitted into the atmosphere by your personal, day-to-day activities.

Examples: Type of car you drive, how far you drive your car, how much electricity you use (electricity primarily comes from burning coal), where the food you buy is grown and airplane flights.

Why do we care??

GLOBAL WARMING Slide17

Things you can do to reduce your carbon footprint

Promote plant life, especially trees

Buy a fuel efficient vehicle

Purchase locally grown food

Reduce electricity use

Reduce how far/much you drive

Take less airplane trips

Reduce, Reuse, Recycle!Slide18

CFA

1. Why is the carbon in the atmosphere increasing?

2. Of the seven processes that transfer carbon, what is the

only one

that reduces the carbon in the atmosphere?

3. Why are we worried about the amount of carbon in the atmosphere?