When tropical air above the surface sinks at 20 to 30 degrees latitude it
A) cools.
B) helps form the trade winds.
C) causes hurricanes.
D) gives rise to high levels of precipitation.
E) none of the above
B
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The northern supercontinent consisted of:
a. North America, Europe, Asia, India, and Greenland. b. North America, Greenland, and Europe. c. North America, Europe, Asia, and India. d. North America, Greenland, Asia, and India. e. North America, Europe, Asia, and Greenland.
The transition from one climate region to another on Earth's surface is usually abrupt and easily recognized
Indicate whether the statement is true or false
As the total world population approaches 10 billion, what is one issue that consumers will inevitably need to address?
A) There will not be enough food for 10 billion people, so consumers will need to consider euthanasia and forced starvation. B) As we approach 10 billion people, we will likely run out of renewable resources. C) Lifestyles and behaviors will need to follow a path of minimizing the consumption of resources. D) Attitudes and lifestyles will need to follow a path of increasing consumption of resources. E) Nonrenewable resources will need to be replenished.
Carrying capacity is the population or biomass
A. That an environment can support in an optimal year B. Of a species without predators C. Of a species without limiting factors D. That remains after a catastrophic dieback has occurred E. Of a species that an environment can support on a long-term basis