Warming air temperatures are slowing melting glaciers. As they melt,primary succession. Thus, option "C" is correct.
What is succession?
Succession is the natural development of a series of biotic communities at the same site. There are two types of succession; primary and secondary.
Primary succession occurs on lifeless unoccupied areas while secondary happens right after that and in there soil and some organism is present already.
Thus, option "C" is correct.
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