Moving poleward, vegetation in the tundra biome grades from
A) lichens to stunted trees to grasses.
B) grasses to stunted trees to lichens.
C) stunted trees to lichens to grasses.
D) stunted trees to grasses to lichens.
D) stunted trees to grasses to lichens.
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Which of the following is one reason that snow is more common in winter than in summer?
a. Precipitation falling from a cloud as snow has a better chance of surviving when temperatures are cold. b. Very tall clouds are more common in winter than in summer. c. Cumulonimbus clouds rarely occur in winter. d. The atmosphere is usually more unstable in summer.
mP air masses
A) are colder than cP masses. B) are drier than cP masses. C) can produce northeasters on the Atlantic Coast of North America. D) rarely affect North America.
In ________, soil in which fine grains predominate moves downslope as a viscous fluid.
A. earthflows B. creep C. rockfalls D. landslides E. avalanches
All of the following are things that can be done toward ecological restoration except
A. Burn unwanted vegetation B. Replant native species C. Remove invasive species D. Grow a garden E. Pick up litter