Front

What is transpiration?

Back

The process of plants losing water through their leaves.

Front

Why do living things need nitrogen?

Back

To make proteins and amino acids.

Front

Which biogeochemical cycle does not involve decomposition?

Back

The water cycle.

Front

What role do bacteria play in the nitrogen cycle?

Back

They convert nitrogen into a usable form for plants and animals.

Front

What is runoff and leaching?

Back

Processes that can move nitrogen from fertilizers into local streams.

Front

Define biogeochemical cycles.

Back

Natural processes that recycle nutrients in various chemical forms from the environment to living organisms and back.

Front

What is the carbon cycle?

Back

The process by which carbon is exchanged among the biosphere, geosphere, hydrosphere, and atmosphere.

Front

Explain nitrogen fixation.

Back

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

Front

What is the role of decomposers in ecosystems?

Back

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

Front

What is the phosphorus cycle?

Back

The movement of phosphorus through the lithosphere, hydrosphere, and biosphere.