Water pollution is responsible for speeding up what process and causing an overgrowth of small plants?

How many time zone are there on earth

Extensive and unusual cold snaps have occurred here recently. is this evidence that global warming is lessening or not occurring? no—although the long-term trend is for warming, short-term weather patterns can still be variable. no—melting of glaciers and ice caps is making the oceans cooler, which can cause cold snaps. yes-- if global warming really were occurring, cold snaps wouldn’t happen. yes—due to global warming, weather patterns should be become less—not more—variable.

What is one early technological advance that shaped culture? a the use of fire b the discovery of arable land c family units. d migration