Unit 4 Water

Front

What percentage of water on Earth is freshwater?

Back

3%

Front

What process involves the conversion of water from liquid to vapor during the water cycle?

Back

Evaporation

Front

Where is surface water primarily found?

Back

Lakes, rivers, and streams

Front

How does thermal pollution affect aquatic ecosystems?

Back

It raises water temperature.

Front

Why is there concern about freshwater availability, despite the abundance of water on Earth?

Back

Less than 1% of Earth's freshwater is drinkable.

Front

What is the water cycle?

Back

The continuous movement of water on, above, and below the surface of the Earth.

Front

What is condensation in the water cycle?

Back

The process where water vapor cools and changes back into liquid water.

Front

What is precipitation?

Back

Any form of water that falls from the atmosphere to the Earth's surface, such as rain, snow, sleet, or hail.

Front

What are aquifers?

Back

Underground layers of water-bearing rock that can store and transmit water.

Front

What is the main source of freshwater on Earth?

Back

Glaciers and ice caps.