At which location will a low-pressure storm most likely form? a) near the middle of a cold air mass. b) on the eastern side of the mountains c) over a dry, flat land area. d) along the frontal line between different air masses. [hint] it’s no matter what, not a.

Which factors add to the greenhouse effect and are caused by human activities?

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.

One disadvantage that darwin faces today is w. enemy attacks x. natural disasters y. lack of land bridge z. high population density