Where Does Atmospheric Carbon Come From? - The Carbon Cycle

The video tutorial explains the major sources of carbon emissions, including living organisms, oceans, and geological activities. It highlights how fossil fuels, derived from ancient organic matter, significantly impact the carbon cycle by releasing carbon stored over millions of years. The tutorial also covers the four natural carbon pools: atmosphere, oceans, land plants, and soils, and describes the global carbon cycle, which involves the movement of carbon among these reservoirs.

Which of the following is NOT a major natural source of carbon emissions to the atmosphere?

• Living organisms

• Oceans

• Solar radiation

• Volcanoes

What is the primary origin of coal?

• Atmospheric carbon

• Volcanic ash

• Ancient swamps and plant matter

• Dead marine animals

How long did it take for fossil fuels to form?

• A few thousand years

• Millions of years

• A few centuries

• A few decades

Which of the following is NOT a natural pool of carbon?

• Plastic waste

• Atmosphere

• Oceans

• Land plants

What is the global carbon cycle?

• The process of carbon being fixed by plants

• The movement of carbon between different reservoirs like atmosphere, land, and oceans

• The storage of carbon in fossil fuels

• The conversion of carbon dioxide to oxygen