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Ch. 8 Test
Test Description: Land, Water, and Air Resources
Instructions: Answer all questions to get your test result.
1) What is the layer of gas that protects the Earth from the Sun\'s ultraviolet rays?
A
Radon
B
Ozone Layer
C
Water vapor
D
Carbon Dioxide
2) What percent of the Earth\'s water is salt water?
A
89%
B
3%
C
79%
D
97%
3) True or False: Most of the Earth\'s freshwater is ice.
A
False
B
True
4) The biggest contributor to global warming is:
A
Sulfur dioxide
B
Carbon monoxide
C
Radon
D
Carbon dioxide
5) In 1990, many countries banned the use of what gases because of their harmful effects on the environment?
A
Chlorofluorocarbons
B
Ozone
C
Carbon Dioxide
D
Carbon Monoxide
6) The 3 R's are reducing, reusing, and _______________.
A
Repurposing
B
Redoing
C
Recycling
D
Radioactivity
7) True or False: Reusing materials actually creates more waste than making new materials.
A
False
B
True
8) True or False: It is a federal law that all American's MUST recycle.
A
False
B
True
9) How many times can glass be recycled before it must be thrown away?
A
2 times
B
4 times
C
There is no limit to the amount of times that glass can be recycled!
D
1 time
10) True or False: Styrofoam is a great product because it decomposes so quickly.
A
True.
B
False.
*select an answer for all questions
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