Biogeochemical cycles

Front

What is the biogeochemical cycle?

Back

A biogeochemical cycle is the movement of elements and compounds through living organisms and the physical environment, involving biological, geological, and chemical processes.

Front

What is transpiration?

Back

Transpiration is the process by which water vapor is released into the air from the stomata of plants.

Front

What role do fossil fuels play in the carbon cycle?

Back

When burned, fossil fuels release carbon dioxide into the atmosphere, contributing to the greenhouse effect.

Front

What is the primary source of phosphorus in ecosystems?

Back

Phosphorus is primarily released into ecosystems through the weathering of rocks.

Front

How does photosynthesis affect carbon dioxide levels in the atmosphere?

Back

Photosynthesis removes carbon dioxide from the atmosphere as plants convert it into glucose and oxygen.

Front

What is evaporation?

Back

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

Front

What is the significance of the water cycle?

Back

The water cycle is crucial for maintaining the Earth's water supply, regulating climate, and supporting life.

Front

What is condensation?

Back

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

Front

What is the role of nitrogen in ecosystems?

Back

Nitrogen is essential for the growth of plants and is a key component of amino acids and nucleic acids.

Front

What is the difference between precipitation and evaporation?

Back

Precipitation is the process of water falling from the atmosphere to the Earth, while evaporation is the process of water turning into vapor.