Question 1

Which of the following statements about the Safe Drinking Water Act is TRUE

Accepted Answer

A)  The law was passed in 1965.
B)  It allowed states to set their own standards for drinking water.
C)  It required the EPA to determine the maximum contaminant levels for drinking water.
D)  This law established the Environmental Protection Agency.

Question 2

Which of the following is an example of surface water

Accepted Answer

A)  saturated soil
B)  an unconfined aquifer
C)  a pond
D)  groundwater

Question 3

The area of land drained by a single river or stream is called:

Accepted Answer

A)  cisterns.
B)  aquifer.
C)  watershed.
D)  reservoirs.

Question 4

According to the EPA,the leading cause of water pollution in US rivers is attributed to:

Accepted Answer

A)  industries.
B)  household wastes.
C)  mining.
D)  agriculture.

Question 5

Draw a diagram of 2 water molecules and label the following components: hydrogen,oxygen,negative,positive,hydrogen bond.Explain how the structure of water is the basis of water's physical properties and how these properties are beneficial to the biosphere.

Accepted Answer

The diagram should be a figure similar t...

Question 6

Sediment pollution is caused by:

Accepted Answer

A)  erosion.
B)  disease-causing agents.
C)  fertilizers.
D)  toxic compounds.

Question 7

What typically happens to estuaries when surface waters are overdrawn

Accepted Answer

A)  They dry up.
B)  They become less salty.
C)  They become saltier.
D)  They can no longer be used for drinking water or for irrigation.

Question 8

Which of the following descriptions most likely describes an oligotrophic lake

Accepted Answer

A)  A lake with high dissolved oxygen concentrations inhabited by small populations of lake trout.
B)  A lake with high nutrient levels occupied by moderate populations of catfish.
C)  A shallow lake with low dissolved oxygen concentration and poor light penetration.
D)  A deep-water lake with high algal growth in poor light penetration

Question 9

The region with highest demand for additional water to support human activities and habitation is/are:

Accepted Answer

A)  arid and semiarid areas.
B)  flood plains.
C)  wetlands.
D)  coastal areas.

Question 10

All of the following statements about the connections between the Ogallala Aquifer and High Plains agriculture are true EXCEPT:

Accepted Answer

A)  In some areas of the High Plains,farmers are drawing water from the Ogallala Aquifer as much as 40 times faster than nature replaces it and have lowered the water table more than 30 m (100 ft) in some places.
B)  Most hydrologists predict that groundwater will eventually drop in all areas of the Ogallala to a level uneconomical to pump so High Plains agriculture will eventually have to change back to dry land agriculture as it was before the aquifer was pumped.
C)  The High Plains produce about 15% of the nation's grain crops and almost 40% of its livestock using approximately 30 percent of the irrigation water used in the United States.
D)  As there is not that much urban development in the High Plains,the recharge zones for the Ogallala Aquifer are unaffected and thus if managed appropriately,can in fact recharge the aquifer adequately to keep up with current withdrawal rates.

Question 11

Which of the following is NOT an example of nonpoint source pollution

Accepted Answer

A)  Agricultural runoff
B)  Erosion from logging operations
C)  Acid mine drainage
D)  Sewage treatment plant effluent

Question 12

Areas of land covered with water for at least part of the year is called:

Accepted Answer

A)  a pond
B)  a wetland
C)  groundwater
D)  an aquifer

Question 13

What is the main cause of the decline in the size of the Aral Sea

Accepted Answer

A)  A dam failed and as a result it drained the Aral Sea reservoir.
B)  Pesticides contaminated the fish living in the sea and thus the water was drained to try and restore the fishstock.
C)  Water was diverted from the sea to irrigate cotton in the Soviet Union.
D)  Global warming lowered water levels due to decreases in precipitation and increases in evaporation.

Question 14

Compare the provisions of the Safe Drinking Water Act and the Clean Water Act.Briefly discuss the effectiveness of each act and highlight any areas in which pollution is still "escaping" regulation.

Accepted Answer

Two U.S.laws having the most impact on w...

Question 15

What is the MAIN reason that water problems have become more severe in the southwestern United States in the last 25 years

Accepted Answer

A)  Range wars.
B)  Saltwater intrusion impairs drinking water.
C)  Rapid population growth places more burdens on the water supply.
D)  Contamination of water by toxic wastes makes it unusable for domestic and agricultural use.

Question 16

What percentage of global water is available as freshwater for use by terrestrial organisms

Accepted Answer

A)  less 3%
B)  about 10%
C)  about 40%
D)  about 60%

Question 17

Compare and contrast the current situation with the Colorado and Columbia Rivers with respect to human activities.Include in your response a discussion of the strategies being implemented to minimize human impact.

Accepted Answer

The Colorado River provides water for mo...

Question 18

One of the BEST ways to conserve the amount of water used by agriculture is through:

Accepted Answer

A)  the use of water diversion canals.
B)  international water swaps.
C)  drawing water from aquifers rather than surface waters.
D)  trickle irrigation.

Question 19

The human body is made up of approximately percent water by weight.

Accepted Answer

A)  10
B)  20
C)  40
D)  70

Question 20

What accounts for the highest percentage of the world's total water consumption

Accepted Answer

A)  Industry
B)  Domestic and municipal use
C)  Recycling
D)  Irrigation

Exam 10: Freshwater Resources and Water Pollution

What accounts for the highest percentage of the world's total water consumption

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The region with highest demand for additional water to support human activities and habitation is/are:

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Areas of land covered with water for at least part of the year is called:

Correct AnswerverifiedShow Answer

What is the main cause of the decline in the size of the Aral Sea

Correct AnswerverifiedShow Answer

Draw a diagram of 2 water molecules and label the following components: hydrogen,oxygen,negative,positive,hydrogen bond.Explain how the structure of water is the basis of water's physical properties and how these properties are beneficial to the biosphere.

Correct AnswerverifiedThe diagram should be a figure similar t...View AnswerShow Answer

What is the MAIN reason that water problems have become more severe in the southwestern United States in the last 25 years

Correct AnswerverifiedShow Answer

According to the EPA,the leading cause of water pollution in US rivers is attributed to:

Correct AnswerverifiedShow Answer

Which of the following is an example of surface water

Correct AnswerverifiedShow Answer

Which of the following descriptions most likely describes an oligotrophic lake

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Compare the provisions of the Safe Drinking Water Act and the Clean Water Act.Briefly discuss the effectiveness of each act and highlight any areas in which pollution is still "escaping" regulation.

Correct AnswerverifiedTwo U.S.laws having the most impact on w...View AnswerShow Answer

Which of the following statements about the Safe Drinking Water Act is TRUE

Correct AnswerverifiedShow Answer

Compare and contrast the current situation with the Colorado and Columbia Rivers with respect to human activities.Include in your response a discussion of the strategies being implemented to minimize human impact.

Correct AnswerverifiedThe Colorado River provides water for mo...View AnswerShow Answer

The human body is made up of approximately percent water by weight.

Correct AnswerverifiedShow Answer

Which of the following is NOT an example of nonpoint source pollution

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What typically happens to estuaries when surface waters are overdrawn

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Sediment pollution is caused by:

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The area of land drained by a single river or stream is called:

Correct AnswerverifiedShow Answer

One of the BEST ways to conserve the amount of water used by agriculture is through:

Correct AnswerverifiedShow Answer

All of the following statements about the connections between the Ogallala Aquifer and High Plains agriculture are true EXCEPT:

Correct AnswerverifiedShow Answer

What percentage of global water is available as freshwater for use by terrestrial organisms

Correct AnswerverifiedShow Answer

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The diagram should be a figure similar t...
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Two U.S.laws having the most impact on w...
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The Colorado River provides water for mo...
View Answer

Correct Answer
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