The researchers estimate that between 1990 and 2010, some 69 percent of the mass lost by the world's alpine glaciers can be traced to human influence – basically global warming. This 2013 file photo shows the Mendenhall Glaicer where it spills over the mountains above Mendenhall Lake in Juneau, Alaska.
Bacteria were first observed by the Dutch microscopist Antonie van Leeuwenhoek in 1676
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Answer:
A spade placed in the fire turns hot.
Explanation:
