Cycles of Matter

Front

What is nitrogen fixation?

Back

The process by which atmospheric nitrogen is converted into a form usable by plants and animals.

Front

Why is nitrogen fixation important?

Back

Because atmospheric nitrogen is unusable to plants and animals, nitrogen fixation allows it to be converted into forms like ammonia that can be absorbed by plants.

Front

What is the long-term portion of the water cycle?

Back

69% of all freshwater is trapped in ice caps and glaciers.

Front

What is the purpose of photosynthesis?

Back

To use energy from the sun to produce food (glucose) for the plant.

Front

What are the different forms of precipitation?

Back

Rain, sleet, snow, and hail.

Front

What is the phosphorus cycle?

Back

The process by which phosphorus is stored in rocks and slowly recycled back into the ecosystem through weathering and erosion.

Front

Why is phosphorus important for living organisms?

Back

Phosphorus is a key component of DNA, RNA, and ATP, which are essential for life.

Front

What is evaporation?

Back

The process by which water changes from a liquid to a gas (water vapor) due to heat.

Front

What is condensation?

Back

The process by which water vapor cools and changes back into liquid water, forming clouds.

Front

What is transpiration?

Back

The process by which water is absorbed by plant roots and then released as vapor through pores in leaves.