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7 April, 05:09

Why isn't Earth a closed system? A. Earth reflects and radiates energy. B. Matter continually cycles between the "spheres." C. Large amounts of matter currently reach Earth from space. D. Earthquakes, volcanoes, and hot springs release energy from Earth's interior.

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  1. 7 April, 05:34
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    D. Earthquakes, volcanoes, and hot springs release energy from Earth's interior.
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