Carbon Cycle Lesson

Multiple Choice

Carbon exists in all of the following except:

• Plants & Animals

• Fossil Fuels, Soils, & Sediments

• Earth's Atmosphere & Oceans

• All of the option contain Carbon.

Multiple Choice

Which of the following is an example of a decomposer?

• Owl
• Fish
• Tree
• Mushroom

Multiple Choice

Which of the following processes releases Carbon into the atmosphere?

• Combustion (burning fossil fuels)

• Photosynthesis

• Diffusion

Multiple Choice

Why does decomposition release carbon dioxide into the atmopshere?

• Living things die and break down returning their carbon to the atmosphere

• Living things break down while still living

• Living things that die turn into fossil fuels which cannot be burned

• This process takes food (sugar) and converts it into usable energy and releases carbon dioxide

Multiple Choice

Which process converts carbon in the form of sugar into carbon dioxide gas?

• Bioremediation
• Photosynthesis
• Cellular Respiration

• Transpiration

Multiple Choice

Which of the following removes carbon from the atmosphere?

• Combustion
• Cellular Respiration

• Photosynthesis
• Decomposition

Multiple Choice

Plants use ____________ to make their own food

• Water

• Sunlight

• Carbon dioxide

• All of these

Multiple Choice

Why does the process of diffusion absorb carbon from the atmosphere?

• decaying organic materials turn into fossil fuels

• plants take in carbon dioxide and sunlight to make their own food

• bodies of water take in carbon dioxide from outer space

• Bodies of water take in carbon dioxide form the air

Multiple Choice

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

• Stay the same

• Increase

• Decrease

Multiple Choice

How is the burning of fossil fuels related to global warming?

• Magic
• Fuels are hot
• Greenhouse effect
• Photosynthesis

Multiple Choice

All of the carbon in existence is continually recycled in the carbon cycle

• True
• False