Front

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

Back

Photosynthesis

Front

Combustion is another word for __________.

Back

Burning

Front

TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.

Back

True

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

What process occurs when coal (fossil fuel) is used for energy?

Back

Combustion

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

Plants use ____________________ to make their own food. Options: Carbon Dioxide, Oxygen, Materials, Gravity

Back

Carbon Dioxide