Water uses and management ch.11

match the following

• recharge zone

• bacteria

• pathogen

• area above an aquifer

• potable

• land that drains into a river

• watershed

• bottled water

Match the following

• artificial eutrophication

• leaking gasoline tank

• Point-source Pollution

• global uses of fresh water

• 1972 Clean Water Act

• law designed to improve water quality

• residential and industrial

• phosphates in laundry detergent

Three percent of the world’s water resources are found as

• fresh water

• salt water

• icecaps and glaciers

• groundwater

Most of the pollutants in the ocean come from

• commercial boats and personal watercraft.

• spills from oil tankers.

• activities on land.

• leaking underground storage facilities.

The 1990 Oil Pollution Act requires that all

• underground storage facilities be constructed of composite

  materials.

• tankers in U.S. waterways be double hulled by the year 2015.

• oil used in the United States be recycled.

• leaking underground storage facilities be repaired in 90 days.

The largest watershed in the United States is the

• Mississippi River.

• Yukon River.

• Colorado River.

• Rio Grande.wwatwas

During the water treatment

process, what is the purpose

of adding chlorine to water?

• to remove large debris

• to form flocs

• to kill or limit bacterial

  growth

• to remove unwanted

  gases

How is fresh water used

in industry?

• in manufacturing

  processes

• in the disposal of waste

  products

• to generate power

• all of these

Many areas of the world

that do not have adequate

fresh water have become

habitable because

• rainfall patterns have

  changed.

• water management

  projects have diverted

  water to the area.

• icebergs have been

  towed in to provide fresh

  water.

• people have practiced

  water conservation.

Fresh water is a limited

resource because

• most water is polluted.

• most surface water con-

  tains salt.v

• it is controlled by power-

  ful governments.

• dams have limited the

  flow of fresh water.