Today is Earth Day! Test your environmental knowledge with this quiz.
Clearing your car of extra weight
Keeping tires properly inflated
Avoiding high speeds
All of the above
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1950
1960
1970
1980
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They last up to 10 times longer than incandescent bulbs
They save money in electricity costs compared to incandescent bulbs
They come in a variety of shades
All of the above
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10 percent
20 percent
40 percent
50 percent
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Heating
Lighting
Appliances
Refrigeration
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2020
2025
2030
2050
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5 percent
10 percent
25 percent
50 percent
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1996
2004
2009
2011
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$700
$1,900
$2,300
$5,700
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