Biogeochemical Cycle Quiz

What is the primary role of photosynthesis in the Oxygen-Carbon Dioxide Cycle?

• It consumes oxygen and releases carbon dioxide.

• It produces glucose and releases oxygen.

• It absorbs sunlight and converts it to heat.

• It breaks down glucose for energy.

Which process is responsible for the release of water vapor from plants?

• Evaporation

• Precipitation

• Transpiration

• Condensation

What do plants take in during respiration?

• Carbon dioxide and water

• Oxygen and glucose

• Nitrogen and ammonia

• Sunlight and carbon dioxide

What is the first step in the nitrogen cycle?

• Nitrogen Fixation

• Nitrification

• Denitrification

• Assimilation

Which of the following is a product of photosynthesis?

• Glucose

• Carbon dioxide

• Nitrogen

• Ammonia

What is the process called when nitrogen is converted into ammonia?

• Ammonification

• Denitrification

• Nitrogen Fixation

• Nitrification

What is the main consequence of excessive ammonium in the soil?

• Soil erosion

• Soil acidification

• Decreased plant growth

• Increased oxygen levels

Which bacteria are known for nitrogen fixation?

• Nitrobacter

• Nitrogen-fixing bacteria

• Nitrosomonas

• Denitrifying bacteria

What is the main function of respiration in living organisms?

• To fix nitrogen

• To absorb sunlight

• To produce glucose

• To consume oxygen and release energy

What happens during the condensation process in the water cycle?

• Water vapor cools and forms clouds.

• Water is absorbed by plants.

• Water vapor is released from leaves.

• Water runs off into rivers.