Biogeochemical Cycles

Front

What is the water cycle?

Back

The water cycle is the continuous process by which water moves from the Earth's surface to the atmosphere and back, involving processes such as evaporation, condensation, precipitation, and transpiration.

Front

Which process is NOT part of the water cycle?

Back

Freezing is not a process of the water cycle.

Front

What is transpiration?

Back

Transpiration is the process by which plants lose water vapor through small openings in their leaves called stomata.

Front

What is surface runoff?

Back

Surface runoff is the flow of water, from rain or melting snow, that moves across the ground and into streams, rivers, and lakes, often carrying nutrients and pollutants.

Front

What role does photosynthesis play in the carbon cycle?

Back

Photosynthesis is the only process that removes carbon dioxide from the atmosphere, as plants convert CO2 into glucose using sunlight.

Front

How do animals obtain carbon?

Back

Animals obtain carbon by consuming plants or other animals that contain carbon.

Front

What is decomposition?

Back

Decomposition is the process by which organic matter is broken down by microorganisms, returning nutrients to the soil and releasing carbon back into the atmosphere.

Front

What is evaporation?

Back

Evaporation is the process by which water changes from a liquid to a gas, usually due to heat from the sun.

Front

What is condensation?

Back

Condensation is the process by which water vapor in the air cools and changes back into liquid water, forming clouds.

Front

What is the significance of the nitrogen cycle?

Back

The nitrogen cycle is crucial for converting nitrogen from the atmosphere into forms that living organisms can use, such as ammonia and nitrates.