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Earth's Precious Resources
Clean Air
by Andrew Bridges

Price: $6.75

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Human activities, such as the burning of fossil fuels and clearing of forests, have steadily added greenhouse gases to the atmosphere, influencing Earth's climate. A warming Earth will have consequences for us all, and we're beginning to see impacts already.

For readers ages 9 and up.
Softcover - 7" x 9"
40 pages


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