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  • The cover of "It's a Gas: The Exchange of Gases Between the Soil and the Atmosphere" featuring a black and white drawing of a person looking at a cow through a magnifying glass.
    Tropical forests are sometimes cut down so that humans can use the trees for wood and other products. Then, the cleared land is made into…
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    It’s a Gas! The Exchange of Gases Between the Soil and the Atmosphere

  • The cover of "It's a Gas: The Exchange of Gases Between the Soil and the Atmosphere" featuring a black and white drawing of a person looking at a cow through a magnifying glass.
    Tropical forests are sometimes cut down so that humans can use the trees for wood and other products. Then, the cleared land is made into…
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    It’s a Gas! The Exchange of Gases Between the Soil and the Atmosphere (Spanish)

  • It's a Gas! - Word Search
    Test your knowledge on anaerobic, climate, and the greenhouse effect.
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    Word Search – It’s a Gas!