Carbon Cycle

Front

What gas do plants release that humans depend on for survival?

Back

Oxygen

Front

When humans burn fossil fuels, where does most of the carbon quickly enter as carbon dioxide?

Back

Atmosphere

Front

Over how many years can once-living matter transform into fossil fuels?

Back

Millions

Front

What process do plants and algae use to make food and building blocks for growth?

Back

Photosynthesis

Front

What gas do animals release that plants depend on for survival?

Back

Carbon dioxide

Front

What is the main process by which carbon is cycled through the environment?

Back

Carbon Cycle

Front

What are fossil fuels primarily made from?

Back

Once-living organic matter

Front

What role do decomposers play in the carbon cycle?

Back

They break down dead organisms, returning carbon to the soil and atmosphere.

Front

What is the significance of photosynthesis in the carbon cycle?

Back

It converts carbon dioxide into organic matter, providing energy for plants and oxygen for animals.

Front

How do human activities impact the carbon cycle?

Back

By burning fossil fuels, deforestation, and industrial processes, humans increase carbon dioxide levels in the atmosphere.