Water grade 4

glaciers are...................

• the small particles of sand that are carried in moving water.

• large sheets of ice formed by snow.

..........are the source of most of the water people use.

• Lakes

• Rivers

• Oceans

In order to obtain water from aquifers we need.........

• to dig holes to pump the water up to the surface.

• find ground water in the layers of rocks underground.

Rivers and lakes are................water.

• ground

• surface

Water makes up about 70% of the...........body.

• human

• animal

People in developed countries consume 10 times more water than those in the developing countries.

• True

• False

Less than 1 billion people draw their water from unsafe sources.

• True

• False

The rapid population growth increased the availability of water on Earth.

• True

• False

In order to have enough water available whenever it is needed, we have to save water by all means.

• True

• False

The developed countries use 59% of their water in industry.

• True

• False