Animals in a desert tend to
a. be active during the day
b. be active at night
c. live in trees
d. be active both day and night

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.

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.

Following lenin’s death, who took control of the soviet union