Global warming and climate change are already causing a variety of changes in biotic systems and communities.   For each of the following scenarios that we discussed in class, select whether they would result in a positive feedback or negative feedback in terms of warming.  1: More lianas (vines) grow in rainforests displacing trees 2: Dark-colored boreal forests expands into zones formerly occupied by light-colored tundra and snow/ice. 3: Tundra permafrost melts, exposing more soil to decompositionMatching

A

positive feedback

B

negative feedback

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