Which of the following regions experienced the greatest impact from deforestation between 1990 and 2010? A. the Amazon Rainforest of South America
B. the Black Forest of Germany
C. the boreal forest of southern Canada
D. the temperate rainforest of the Pacific Northwest
Correct A. the Amazon Rainforest of South America

Too many fish being caught in a single season can lead to .
A. increased prices on the market
B. unemployment in the fishing industry
C. increased water pollution
D. fishery collapse
Correct D. Fish collapse

Globally, sea levels have risen by inches over the past 100 years.
A. 2
B. 3
C. 5
D. 7
Correct D. 7

Anoxia, or a lack of oxygen in bodies of water, leads to .
A. unsafe drinking water
B. dead zones
C. global warming
D. algae blooms
Correct B. dead zones

Which of the following statements best characterizes the risk of ground-level ozone and air pollution?
A. It contaminates the food supply.
B. It contaminates the water supply.
C. It is very harmful to human health.
D. It disrupts the food chain in lakes.
Correct C. It is very harmful to human health.
Which of the following regions has had the lowest freshwater supply per person in recent years?
A. Africa
B. Asia
C. Australia
D. the Middle East
Correct B. Asia

Which of the following statements about scientists' views of global warming is true?
A. Nearly all scientists agree that the Earth's temperature is rising, but many disagree about whether humans are responsible, while a small percentage agree that humans are responsible.
B. Nearly all scientists agree that the Earth's temperature is rising and that humans are responsible, while a small percentage do not agree that humans are responsible.
C. Nearly all scientists agree that the Earth's temperature is rising, but most agree that humans are not responsible.
D. There is no consensus among scientists on this issue; they disagree over whether the Earth's temperature is rising.
Correct B.

Which of the following issues is the most pressing environmental concern in the Middle East?
A. air pollution
B. water scarcity
C. land salinization
D. mineral resource depletion
Correct B. water scarcity

Africa experiences a high level of air pollution because it has more old vehicles on the road than industrialized regions do.
Correct True

Which of the following goals is included in the initiatives created by the United Nations Environment Programme?
A. the reduction of carbon emissions by 80% by 2050
B. the reduction of the population growth rate by 10% by 2050
C. trade embargoes against nations that fail to conserve resources
D. changes that will limit global warming to 1° F by 2050
Correct A. the reduction of carbon emissions by 80% by 2050