Global Water Recources And Use

Question 1

Why is water so important to life? (5)

Answer 1

1. ) Plants, animals and humans are mainly made up of water
2. ) Sculpts the earth
3. ) Moderates climate
4. ) Dilutes pollutants
5. ) Provides food and shelter

Question 2

Waters unique properties #1?

Bonds

Answer 2

Strong forces of attraction between water molecules called hydrogen bonds

Question 3

Waters unique properties? #2

Liquid

Answer 3

Water is a liquid over a wide temperature range, it has a really high boiling point and low freezing point

Question 4

Waters unique properties? #3

Temp change

Answer 4

Liquid water changes temperature very slowly which helps living organisms to survive temperature fluctuation and it is an excellent coolant for cars and power plants.

Question 5

Waters unique properties?
#4
(When frozen)

Answer 5

Water expands when it freezes

Question 6

Surface water

Answer 6

Freshwater above ground lakes, ponds, rivers and streams

Question 7

Watershed

Answer 7

The entire area of land that is drained by a certain river

Question 8

Groundwater

Answer 8

Water that seeps underground

Question 9

Recharge zone

Answer 9

Area on land where groundwater originates

Question 10

Aquifer

Answer 10

Large amounts of groundwater found in underground rock formations

Question 11

Four causes for water scarcity

Answer 11

1. ) Dry climate
2. ) Drought
3. ) Desiccation
4. ) Water stress

Question 12

Six ways to increase the supply of fresh water:

Answer 12

1. ) Build dams to store runoff
2. ) bring surface water from another area
3. ) withdraw groundwater
4. ) convert salt water to freshwater
5. ) waste less water
6. ) import food

Question 13

Pumping groundwater advantages: (3)

Answer 13

1. ) Year round
2. ) Not lost due to evaporation
3. ) Less expensive

Question 14

Disadvantages of pumping groundwater: (2)

Answer 14

1. ) Aquifer depletion

2. ) Sinkholes

Question 15

Desalinization

Answer 15

Removing the salt from salt water

Question 16

Floodplain

Answer 16

Land next to a stream or river, which floods during rapid snowmelt or heavy rain