Water Ecology Topic Test Review

Surface water standards for recreation are determined by the Clean Water Act.

• True

• False

Which of the following is a way in which water resources are consumed?

• drinking

• business

• industry

• all of the above

Which of the following requires separate plumbing?

• desalination

• greywater use

• water reclamation

• none of these

Australian aborigines could not use wells in the desert due to lack of groundwater.

• True

• False

Aquifers are . . .

• important sources of freshwater

• located below the water table

• located in the saturated zone

• all of these

Groundwater overdraft occurs when . . .

• aquifers become polluted.

• the location of the water table changes due to erosion.

• the rate of use exceeds the rate of replenishment.

• trees are planted.

A heat source could be considered a source of pollution.

• True

• False

Which of the following is the most serious effect of water pollution for humans?

• algal blooms

• infectious diseases

• low-oxygen water

• toxic food chain effects

Changing your toilet can reduce water pollution because . . .

• chemicals added by new toilets neutralize the pathogens in the water.

• more efficient plumbing uses less water and creates smaller volumes of waste.

• more efficient plumbing uses more water and creates larger volumes of water.

• the sewage is treated in the toilet before entering the sewer system.

The defining characteristic of potable water is that it . . .

• can be used and consumed without risk.

• can be used for washing and irrigation.

• is delivered through pipes.

• is used as tap water.