Water that is stored in pores, soil, sediments and rocks is known as_____________?

• salt water

• freshwater

• soil water

• groundwater

What is the best definition of desalination?

• Removing harmful chemicals from water

• Filtering dirty water

• Cleaning natural spring water

• Removing salt and minerals from sea water

Reverse osmosis requires large amounts of energy and produces high carbon emissions.

• True

• False

Whjat is the biggest problem with using desalination more to provide fresh drinking water?

• The technology is not in place to do so

• Energy costs are very high

• People are unwilling to drink water that originally was in the ocean

• Much of the seawater is polluted

Water collected may not be clean. State the effect of consuming contaminated water.

• If the water is used before the next water rationing day, the people have to resort to buying water at very high prices.

• Drinking unclean water can cause water-borne diseases, such as cholera.

• People have to walk for kilometres and then queue for water to carry home.

• The children cry all day because of hunger of scorching sun.

Why aren't desalinization and drip irrigation used more in Southwest Asia?

• Most countries do not know about these technologies

• Drip irrigation is not very effective in a hot, dry climate

• Few countries in Southwest Asia have access to seawater

• These technologies are very expensive for the countries to use

All of the following are environmental disadvantages of dams used to produce energy except

• flooding downstream is reduced

• large amounts of water are lost through evaporation

• flooded land destroys terrestrial lands and displaces people

• migration and reproductive patterns of some fish species is disrupted

• reduces nutrient rich silt form reaching downstream ecosystems

Which process is shown in the image?

• evaporation

• condensation

• flow

• percolation

What percentage of the Earth’s fresh water is available for drinking?

• 10%
• <1%
• 3%
• 15%

In the diagram, letter B best represents:

• Unconfined Aquifer

• Confining Layer

• Confined Aquifer

• Recharge Zone