Biogeochemical Cycles BW

Front

Which process removes carbon dioxide from the atmosphere?

Back

tree farms

Front

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

Back

fossil fuels

Front

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

Back

oxygen, carbon dioxide

Front

How does the carbon in grass become part of a living animal?

Back

It ends up in its food chain

Front

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

Back

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

Front

If the plant population decreased, the amount of carbon would _________. Options: Stay the same, Increase, Decrease

Back

Increase

Front

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

Back

decomposition and respiration

Front

Which one of these does not add CO2 to the atmosphere? Options: cooking with gas, planting trees, burning wood, riding in a bus

Back

planting trees

Front

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

Back

Atmosphere

Front

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

Back

Combustion