Nutrient Cycles

Front

What is the carbon cycle?

Back

The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms. It involves processes like photosynthesis, respiration, decomposition, and combustion.

Front

How do animals obtain carbon?

Back

Animals obtain carbon primarily by eating plants or other animals that have consumed plants.

Front

What role do decomposers play in the carbon cycle?

Back

Decomposers break down dead organic matter, returning carbon to the soil and releasing carbon dioxide back into the atmosphere.

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

How does carbon dioxide enter the food chain?

Back

Carbon dioxide enters the food chain through photosynthesis, where plants convert it into organic compounds.

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 plants absorb nitrogen?

Back

Plants absorb nitrogen in the form of nitrogen compounds, such as nitrates and ammonium, from the soil.

Front

What is the role of nitrogen-fixing bacteria?

Back

Nitrogen-fixing bacteria convert atmospheric nitrogen into ammonia, which can then be used by plants.

Front

What is decomposition?

Back

Decomposition is the process by which organic substances are broken down into simpler organic or inorganic matter, returning nutrients to the soil.

Front

What is the significance of the water cycle?

Back

The water cycle is crucial for maintaining life on Earth, as it regulates climate, supports plant growth, and replenishes freshwater resources.