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As glacial ice melts, it exposes soil that absorbs more energy than ice, which causes it to get warmer, which melts more ice, exposing more soil, and so on. this is an example of a. a tragedy of the commons. b. a point source of pollution. c. a negative feedback loop. d. a positive feedback loop. e. secondary succession.

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As glacial ice melts, it exposes soil that absorbs more energy than ice, which causes it to get warm...
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