Cycles

Front

What is a biogeochemical cycle?

Back

A biogeochemical cycle is a natural process that recycles nutrients in various chemical forms from the nonliving environment to living organisms and back.

Front

What role do decomposers play in biogeochemical cycles?

Back

Decomposers break down dead organisms, returning inorganic chemicals to the soil, water, and air, thus facilitating nutrient cycling.

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, denitrification, and ammonification.

Front

How do legumes contribute to the nitrogen cycle?

Back

Legumes have symbiotic relationships with nitrogen-fixing bacteria, which convert atmospheric nitrogen into a form that plants can use.

Front

What is eutrophication?

Back

Eutrophication is the process by which water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen.

Front

How does human activity influence the carbon cycle?

Back

Human activities, such as burning fossil fuels and deforestation, increase carbon dioxide levels in the atmosphere, impacting the carbon cycle.

Front

What is the largest reservoir of carbon on Earth?

Back

The largest reservoir of carbon on Earth is found in the oceans.

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 like evaporation, condensation, and precipitation.

Front

What is the relationship between the carbon cycle and the oxygen cycle?

Back

The carbon cycle and oxygen cycle are interconnected; plants absorb carbon dioxide and release oxygen during photosynthesis.

Front

What are the main components of the nitrogen cycle?

Back

The main components of the nitrogen cycle include nitrogen fixation, nitrification, assimilation, ammonification, and denitrification.