Biogeochemical Cycle Review

Front

What do animals inhale and exhale during respiration?

Back

Animals inhale oxygen and exhale carbon dioxide (CO₂).

Front

What does the 'X' in a Venn diagram of biogeochemical cycles likely represent if it is identified as the carbon cycle?

Back

The 'X' represents the carbon cycle.

Front

How do increased levels of carbon dioxide (CO₂) affect Earth's climate?

Back

Increased CO₂ levels cause long-term warming of the planet.

Front

Can animals directly consume nitrogen gas (N₂) from the air?

Back

No, animals cannot consume nitrogen gas (N₂) directly from the air.

Front

What process in the water cycle is represented by transpiration?

Back

Transpiration is the process where water is absorbed by plants and released as vapor into the atmosphere.

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the process by which nitrogen is converted between its various chemical forms, including fixation, nitrification, and denitrification.

Front

What role do decomposers play in the biogeochemical cycles?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for plants.

Front

What is photosynthesis and its significance in the carbon cycle?

Back

Photosynthesis is the process by which plants convert carbon dioxide (CO₂) and sunlight into glucose and oxygen, playing a crucial role in the carbon cycle.

Front

What is denitrification?

Back

Denitrification is the process by which bacteria convert nitrates in the soil back into nitrogen gas (N₂), releasing it into the atmosphere.

Front

What is the water cycle?

Back

The water cycle is the continuous movement of water on, above, and below the surface of the Earth, including processes like evaporation, condensation, and precipitation.