Carbon Cycle

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.

• Water
• Atmosphere
• Sun
• Air

Which action would help remove carbon dioxide from the atmosphere?

• deforestation

• planting tree farms

• burning fossil fuels

• cellular respiration

Carbon can be found in... (Select all that apply)

• The atmosphere
• Soil
• Fossil fuels
• The ocean

• Plants

Cellular Respiration involves the chemical breakdown of _____.

• Fats

• Fructose

• Glucose

• Proteins

Tags

Cellular Respiration

Plants use ____________________ to make their own food.

• Carbon Dioxide

• Oxygen

• Materials

• Gravity

How do animals get carbon?

• By eating plants or other animals.

• They absorb it from the atmosphere.

• From the ground.

• They do not get carbon from anywhere.

Which of the following is an example of human impact on the carbon cycle?

• The increased production of carbon gases from cattle farms

• Cutting down trees for lumber

• Using fossil fuels to power transportation

• All of the above

If a forest fire occurs, what will happen to the carbon in the forest?

• It will go into the soil

• It will go into the atmosphere

• It will runoff into nearby streams and rivers

• It will be destroyed

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

• water
• nutrients
• air
• fossil fuels

If the plant population decreased, the amount of carbon would _________.

• Stay the same
• Increase
• Decrease