EEn 2.4.1 Water Use

What percentage of the earth is water?

• 50%

• 60%

• 71%

• 80%

There is more salt water than freshwater on our planet.

• True

• False

All people on Earth have easy access to clean drinking water because freshwater is equally distributed around the world.

• True

• False

A greater population leads to greater demand for water.

• True
• False

Which of the following situations would cause a water shortage?

• level of water usage meets the water supply available

• level of water usage is below the water supply available

• level of water usage exceeds the water supply available

• level of water usage is equal to the water supply available

Which of the following is NOT a residential use of water>

• cooking and drinking

• washing dishes and clothes

• washing cars and watering the lawn

• watering the crops

• showers and toilets

The water and human wastes that are washed down sinks, showers, and toilets are called __________________.

• the water cycle

• sewage

• precipitation

• runoff

Most water pollution is the result of __________________.

• natural processes
• animal waste
• human activities
• acid rain

Wastes produced by agriculture, households, industry, mining, and other human activities can end up in ______________.

• groundwater
• streams and rivers
• oceans
• All of these choices

When water is used to irrigate crops, water is considered an important aspect of ______.

• fishing

• agriculture

• trucking

• business