Review | Forestry Science Final Exam (Spring 24)

Which of the following is correct?

• There is as much carbon on earth as when it was formed

• Carbon is being created whenever it is recycled

• Carbon is lost every time it is recycled

• Carbon changes to different forms and is never recovered

Answer explanation

The correct answer is 'There is as much carbon on earth as when it was formed'. This choice states that the amount of carbon on earth remains constant over time.

What does NOT produce carbon dioxide?

• Photosynthesis

• Burning Fossil Fuels

• Animal respiration

• Plants decaying

Answer explanation

Photosynthesis is the process that does NOT produce carbon dioxide. It is the opposite process, where plants use carbon dioxide to produce oxygen.

Combustion is another word for __________.

• Transportation

• Respiration

• Fossil Fuels

• Burning

Answer explanation

Combustion is another word for burning. It refers to the process of a substance reacting with oxygen to produce heat and light.

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

• True

• False

Answer explanation

True. The carbon cycle ensures that all carbon in existence is continually recycled.

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

• water

• nutrients

• air

• fossil fuels

Answer explanation

Organisms that do not decompose can be buried and become fossil fuels.

Carbon can be found in...

• The atmosphere

• Soil

• Fossil fuels

• All of the above

Answer explanation

Carbon can be found in the atmosphere, soil, and fossil fuels. Therefore, the correct choice is 'All of the above'.

Which of the following removes carbon from the atmosphere?

• Combustion

• Respiration

• Photosynthesis

• Death

Answer explanation

Photosynthesis is the process that removes carbon from the atmosphere by converting it into oxygen and glucose.

What is the role of decomposers in an Ecosystem? 

• They recycle matter and nutrients to form fossil fuels

• They are burn and release as carbon dioxide

• Decomposers are responsible to turn oxygen into carbon dioxide

• They recycle energy back to the sun

Answer explanation

Decomposers recycle matter and nutrients to form fossil fuels, which is the correct role in an ecosystem.

Gas that makes up 78% of our atmosphere.

• Oxygen

• Nitrogen

• Hydrogen

• Carbon Dioxide

Answer explanation

Nitrogen is the gas that makes up 78% of our atmosphere. It is the correct choice because it is the most abundant gas in the Earth's atmosphere.

Plants and animals cannot use nitrogen directly from the air.

• True

• False

Answer explanation

Plants and animals cannot use nitrogen directly from the air. This statement is true.