Ch. 8 Test Question Preview (ID: 5405)

Land, Water, And Air Resources.[print questions]

What is the layer of gas that protects the Earth from the Sun\'s ultraviolet rays?
a) Carbon Dioxide
b) Water vapor
c) Radon
d) Ozone Layer

What percent of the Earth\'s water is salt water?
a) 89%
b) 3%
c) 97%
d) 79%

True or False: Most of the Earth\'s freshwater is ice.
a) True
d) False

The biggest contributor to global warming is:
a) Carbon monoxide
b) Radon
c) Sulfur dioxide
d) Carbon dioxide

In 1990, many countries banned the use of what gases because of their harmful effects on the environment?
a) Chlorofluorocarbons
b) Carbon Monoxide
c) Carbon Dioxide
d) Ozone

The 3 R's are reducing, reusing, and _______________.
a) Repurposing
b) Recycling
c) Redoing
d) Radioactivity

True or False: Reusing materials actually creates more waste than making new materials.
a) True
d) False

True or False: It is a federal law that all American's MUST recycle.
a) True
d) False

How many times can glass be recycled before it must be thrown away?
a) 2 times
b) 4 times
c) 1 time
d) There is no limit to the amount of times that glass can be recycled!

True or False: Styrofoam is a great product because it decomposes so quickly.
a) True.
d) False.

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