4.1 Matter Cycles

Front

What do plants need to go through photosynthesis?

Back

Plants need water, carbon dioxide (CO2), and light to perform photosynthesis.

Front

Can plants and animals use nitrogen directly from the air?

Back

No, plants and animals cannot use nitrogen directly from the air.

Front

Which cycle involves the conversion of nitrogen in the atmosphere into a usable form for living organisms?

Back

The Nitrogen cycle.

Front

How do humans impact the carbon cycle?

Back

Humans impact the carbon cycle through activities such as factories burning fossil fuels.

Front

What type of organisms can convert atmospheric nitrogen into a form useful to living things?

Back

Nitrogen-fixing bacteria.

Front

What is the main process by which plants convert sunlight into energy?

Back

Photosynthesis.

Front

What are the main components of the water cycle?

Back

Evaporation, condensation, precipitation, and infiltration.

Front

What role do decomposers play in matter cycles?

Back

Decomposers break down dead organisms, returning nutrients to the soil and completing the cycle.

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, land, and oceans.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting nitrogen gas from the atmosphere into ammonia or related compounds in soil.