Earth's Systems and Water Distribution

Front

What is an ecosystem?

Back

An ecosystem is all of the living and non-living things in a place, interacting with each other.

Front

What is an example of the biosphere?

Back

A forest is an example of the biosphere, which includes all living organisms.

Front

Which of these is not a source of fresh water?

Back

The ocean is not a source of fresh water.

Front

What category of water includes lakes, rivers, and reservoirs?

Back

Freshwater includes lakes, rivers, and reservoirs.

Front

What is an example of the hydrosphere?

Back

Rivers are an example of the hydrosphere, which includes all water on Earth.

Front

What are the four spheres of Earth?

Back

The four spheres of Earth are the biosphere, hydrosphere, atmosphere, and geosphere.

Front

What is the hydrosphere?

Back

The hydrosphere is the part of Earth that is made up of water, including oceans, rivers, lakes, and glaciers.

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where life exists on Earth.

Front

What is freshwater?

Back

Freshwater is water that has low concentrations of dissolved salts, found in rivers, lakes, and glaciers.

Front

What is saltwater?

Back

Saltwater is water that contains a high concentration of dissolved salts, primarily found in oceans.