Carbon cycle

Front

What does NOT produce carbon dioxide? Options: Photosynthesis, Burning Fossil Fuels, Animal respiration, Plants decaying

Back

Photosynthesis

Front

Organisms that do not decompose can be buried and become what?

Back

fossil fuels

Front

Carbon can be found in...

Back

All of the above

Front

Which of the following removes carbon from the atmosphere? Options: Combustion, Respiration, Photosynthesis, Death

Back

Photosynthesis

Front

Respiration is the process by which animals take in _____ and release _____.

Back

oxygen, carbon dioxide

Front

The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature? Options: lower levels of ozone in the atmosphere, lower levels of nitrogen in the atmosphere, higher levels of carbon dioxide and other greenhouse gases in the atmosphere, higher levels of oxygen in the atmosphere

Back

higher levels of carbon dioxide and other greenhouse gases in the atmosphere

Front

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide. Options: Water, Atmosphere, Sun, Air

Back

Atmosphere

Front

How do living organisms return carbon to the atmosphere in the carbon cycle?

Back

decomposition and respiration

Front

In the carbon cycle, producers take in the gas __

Back

carbon dioxide

Front

How does the carbon in grass become part of a lion?

Back

The carbon ends up in the lion's food chain.