Cycle Quiz 7th Grade

What process in the water cycle involves the change of water from a gas to a liquid?

• Evaporation

• Condensation

• Precipitation

• Transpiration

During photosynthesis, plants use carbon dioxide and water to produce glucose and what other substance?

• Oxygen

• Carbon

• Nitrogen

• Hydrogen

What is nitrogen fixation in the nitrogen cycle?

• The process of converting nitrogen gas into ammonia

• The release of nitrogen gas into the atmosphere

• The absorption of nitrogen by plants

• The conversion of nitrogen into nitrates

Which process in the water cycle involves the change of liquid water into water vapor?

• Condensation

• Precipitation

• Evaporation

• Infiltration

In the carbon cycle, what is the process called where organisms break down dead material and release carbon back into the atmosphere?

• Photosynthesis

• Respiration

• Decomposition

• Combustion

What is the primary source of energy that drives the water cycle?

• Wind

• The Moon

• The Sun

• Geothermal heat

Which of the following is NOT a component of the nitrogen cycle?

• Nitrogen fixation

• Photosynthesis

• Nitrification

• Denitrification

In the carbon cycle, plants absorb carbon dioxide from the atmosphere and convert it into organic matter through which process?

• Respiration

• Decomposition

• Combustion

• Photosynthesis

What is the process called when water vapor in the air cools down and changes back into liquid, forming clouds?

• Evaporation

• Condensation

• Precipitation

• Sublimation

Which process in the nitrogen cycle involves bacteria converting ammonia into nitrate?

• Ammonification

• Nitrification

• Denitrification

• Nitrogen fixation