Why is carbon important to us:
- Carbon is essential to life on earth.
- It is the fourth most abundant element in the universe after hydrogen, helium, and oxygen.
- Every living organism needs carbon to sustain itself – about 18% of mass in our bodies is carbon.
- The total amount of carbon on earth is fixed, we cannot create more carbon and we cannot destroy the existing level of carbon on earth.
What is the Carbon Cycle:
- The carbon cycle explains how carbon is recycled between the atmosphere, plants and animals.
- Plants absorb carbon dioxide during photosynthesis to produce food.
- Animals eat plants and pass the carbon compounds down the food chain.
- Animals breathe out carbon dioxide back into the air.
- When plants and animals die, they decompose and carbon dioxide is again returned to the air.
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