Biogeochemical Cycles

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, involving processes such as evaporation, condensation, precipitation, and infiltration.

Front

What are the main processes of the water cycle?

Back

The main processes of the water cycle include evaporation, condensation, precipitation, infiltration, and transpiration.

Front

Which process in the water cycle involves water vapor turning into liquid?

Back

Condensation is the process where water vapor cools and turns into liquid water, forming clouds.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, producing carbon dioxide and water as byproducts.

Front

What are nodules in the context of biogeochemical cycles?

Back

Nodules are swellings on the roots of legumes that contain nitrogen-fixing bacteria, which convert atmospheric nitrogen into a form usable by plants.

Front

What is denitrification?

Back

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

Front

What role do decomposers play in biogeochemical cycles?

Back

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

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting atmospheric nitrogen into ammonia or related compounds in soil, making nitrogen available to plants.

Front

What is the significance of the carbon cycle?

Back

The carbon cycle is crucial for regulating Earth's climate and supporting life by recycling carbon among the atmosphere, oceans, soil, and living organisms.