Question 1

The Montreal Protocol,an international treaty,banned the use of

Accepted Answer

A)  DDT.
B)  steroid hormones.
C)  ICBMs.
D)  ethylene glycol.
E)  CFCs.F) B) and E)
G) All of the above

Question 2

If global warming continues and predictions are correct,by the end of the twenty-first century sea level on Earth will

Accepted Answer

A)  rise by 18 to 59 cm.
B)  remain the same.
C)  fall by 6 to 12 cm.
D)  rise by 190 to 125 cm.
E)  rise by 6 to 6.5 m.F) B) and C)
G) C) and D)

Question 3

The primary cause for loss of biodiversity is

Accepted Answer

A)  predation.
B)  parasitism.
C)  genetic mutation.
D)  habitat destruction.
E)  global warming.F) All of the above
G) B) and C)

Question 4

Since the 1950s,______ of the ocean's large predatory fishes have disappeared.

Accepted Answer

A)  20%
B)  50%
C)  90%
D)  70%
E)  1%F) A) and B)
G) A) and E)

Question 5

Release of sulfate and nitrate during the burning of coal contributes to

Accepted Answer

A)  eutrophication.
B)  acid rain.
C)  accumulation of persistent organic pollutants.
D)  loss of the ozone layer.
E)  the dead zonE.F) A) and E)
G) A) and D)

Question 6

Humans can survive on Earth without biodiversity.

Accepted Answer

A) True 
 B)False

Question 7

Conservation biologists breed some endangered species like the panda bear in captivity.Which is the most likely reason that panda populations in the wild are still threatened?

Accepted Answer

A)  Not enough animals can be bred to release into the wild.
B)  Their environment is polluted.
C)  Loss of habitat has occurred.
D)  The wild pandas cannot breeD.
E)  Their population density is too high.F) A) and B)
G) None of the above

Question 8

The pH of acid deposition occurring in the eastern United States is about

Accepted Answer

A)  4.6.
B)  5.6.
C)  6.4.
D)  7.0.
E)  8.4.F) A) and E)
G) C) and D)

Question 9

After nearing extinction in the 1960s,the bald eagle population is now about 10,000.

Accepted Answer

A) True 
 B)False

Question 10

The normal pH of rainfall is

Accepted Answer

A)  slightly acidic,pH 5.6.
B)  slightly basic,pH 9.6.
C)  slightly acidic,pH 9.6.
D)  neutral,pH 7.0.
E)  slightly basic,pH 5.6.F) B) and E)
G) A) and B)

Question 11

A decrease in the ozone layer and a subsequent increase in the UV radiation reaching the Earth's surface is a significant factor in the increasing number of cases of human

Accepted Answer

A)  lung cancer.
B)  tuberculosis.
C)  stillbirths.
D)  skin cancer.
E)  malaria.F) A) and E)
G) C) and D)

Exam 20: Preserving Biodiversity

The normal pH of rainfall is

Correct Answer
verified

Since the 1950s,______ of the ocean's large predatory fishes have disappeared.

Correct Answer
verified

If global warming continues and predictions are correct,by the end of the twenty-first century sea level on Earth will

Correct Answer
verified

A decrease in the ozone layer and a subsequent increase in the UV radiation reaching the Earth's surface is a significant factor in the increasing number of cases of human

Correct Answer
verified

Humans can survive on Earth without biodiversity.

Correct Answer
verified

The primary cause for loss of biodiversity is

Correct Answer
verified

The pH of acid deposition occurring in the eastern United States is about

Correct Answer
verified

After nearing extinction in the 1960s,the bald eagle population is now about 10,000.

Correct Answer
verified

Conservation biologists breed some endangered species like the panda bear in captivity.Which is the most likely reason that panda populations in the wild are still threatened?

Correct Answer
verified

The Montreal Protocol,an international treaty,banned the use of

Correct Answer
verified

Release of sulfate and nitrate during the burning of coal contributes to

Correct Answer
verified

Exam 20: Preserving Biodiversity

The normal pH of rainfall is

Correct AnswerverifiedShow Answer

Since the 1950s,______ of the ocean's large predatory fishes have disappeared.

Correct AnswerverifiedShow Answer

If global warming continues and predictions are correct,by the end of the twenty-first century sea level on Earth will

Correct AnswerverifiedShow Answer

A decrease in the ozone layer and a subsequent increase in the UV radiation reaching the Earth's surface is a significant factor in the increasing number of cases of human

Correct AnswerverifiedShow Answer

Humans can survive on Earth without biodiversity.

Correct AnswerverifiedShow Answer

The primary cause for loss of biodiversity is

Correct AnswerverifiedShow Answer

The pH of acid deposition occurring in the eastern United States is about

Correct AnswerverifiedShow Answer

After nearing extinction in the 1960s,the bald eagle population is now about 10,000.

Correct AnswerverifiedShow Answer

Conservation biologists breed some endangered species like the panda bear in captivity.Which is the most likely reason that panda populations in the wild are still threatened?

Correct AnswerverifiedShow Answer

The Montreal Protocol,an international treaty,banned the use of

Correct AnswerverifiedShow Answer

Release of sulfate and nitrate during the burning of coal contributes to

Correct AnswerverifiedShow Answer

Correct Answer
verified

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