Water Resources

Water on the top the earth can form lakes or rivers, these are termed ____.

• fresh water
• infiltration
• surface water
• groundwater

What is the driving force of the water cycle?

• evaporation from the ocean
• heat from the sun
• precipitation from rainfall
• runoff from mountains

Rainwater that flows over land without sinking into the soil.

• runoff
• spring
• groundwater
• aqueduct

A region of land that drains into a river.

• water reclamation
• watershed
• aquifer
• irrigation

A hole dug or drilled into the ground to provide a supply of water.

• watershed
• desalination
• groundwater
• well

The process of suppling fresh water to farm fields for growing crops.

• aqueduct
• irrigation
• spring
• runoff

Most of Earths fresh water (~70%) is used for _____?

• Agriculture (farming)
• Industry (making products)
• Domestic (at home)

About 97% of the water on Earth is ___________________.

• fresh water
• groundwater
• salt water
• ice

Most water pollution is the result of __________________.

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

___________________ washes agricultural wastes, including animal wastes, fertilizers, and pesticides, into bodies of water, causing algae to grow.

• Runoff
• Peak flow
• Groundwater
• Municipal sewage