Canada's Environmental Issues

Rain mixes with which substances to become acidic.

• A. sulfur dioxide, oxygen, hydrogen
• B. hydrogen, oxygen, carbon dioxide
• C. water molecules, carbon dioxide, hydrogen
• D. sulfur dioxide, carbon dioxide, nitrogen dioxide

 Which are sources of chemicals in acid rain?

• A. forests
• B. walkers
• C. bicycles
• D. coal-burning power plants

Canada has to work with the United States to solve the problem of acid rain because the United States

• A. is the source odf much of Canada's air pollution.
• B. purchases many of the goods that Canada produces in its factories.
• C. has reduced the amount of acid rain and understands how to solve the problem.
• D. is careful to keep air pollution from leaving the United States and entering Canada.

Use the statements below to answer the next question.
1. Fish in lakes die.
2. Forests begin to die.
3. Bicycle use increases.
4. Stone statues begin to lose their features.
Which statements are problems that result from acid rain?

• A. 1,2,3
• B. 2,3,4
• C. 1,2,4
• D. 1,3,4

Forests cover about how much land in Canada?

• A. one- half
• B. one-third
• C. one-fourth
• D. three-fourths

Which is a problem related to clear-cutting?

• A. Soil is turned up.
• B. Erosion of soil stops.
  C. Timber companies save money.
• D. Wildlife loses large areas of habitat.

What is the government of Canada doing to protect the forests?

• A. planting seeds and seedlings.
• B. spending billions of dollars selling forests.
• C. encouraging clear-cutting to keep lumber costs down.
• D. providing new homes for wildlife and new areas for human recreation.

Where in Canada are the most valuable minerals found?

• A. Hudson Bay
• B. Canadian Shield
• C. Golden Horseshoe
• D. St. Lawrence Seaway

Which is a benefit of mining in Canada?

• A. Valuable mining lands are located near cities.
• B. Waterways are polluted in the process of mining.
• C. Over 1.5 million people work in the mining industry.
• D. Sulfer dioxide (SO2) is spewed into the air and lands in waterways.

The first Canadian-American plan to clean the Great Lakes was to reduce which chemical?

• A. detergent
• B. fertilizer
• C. pesticide
• D. phosphorus