Front

What is combustion?

Back

Combustion is the process of burning something.

Front

How do living organisms return carbon to the atmosphere in the carbon cycle?

Back

Through decomposition and respiration.

Front

Which organisms play a role in the nitrogen cycle?

Back

Plants, animals, and bacteria.

Front

Is nitrogen the most plentiful gas in the atmosphere?

Back

True.

Front

Why do organisms need nitrogen to survive?

Back

For proteins and nucleic acids.

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.

Front

What role do decomposers play in nutrient cycles?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is the significance of the nitrogen cycle?

Back

The nitrogen cycle is essential for converting nitrogen into forms that plants and animals can use.

Front

What are the main components of the water cycle?

Back

Evaporation, condensation, precipitation, and infiltration.