Which of the following is probably an important regulator of the earth's climate on a short-term basis?
a. orbital movements
b. atmospheric circulation patterns
c. deep oceanic currents
d. none of the above
c
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You are visiting a nature preserve in Costa Rica with a classmate. Your companion comments on the bright colors and beauty of many species of frogs and insects that you encounter on your excursion
Explain to this person the function that the bright colors serve in the context of ecosystem functioning. What will be an ideal response
Why did Wegener choose organisms such as Glossopteris and Mesosaurus as evidence for continental drift as opposed to other fossil organisms, such as sharks or jellyfish?
What will be an ideal response?
The prevailing sea-to-land and land-to-sea winds that are the dominant climatic concern for people living in the Asian region are
a. monsoons. b. typhoon. c. tsunamis. d. cyclonic or frontal lifting. e. orographic lifting.
A type of agriculture that involves a land rotation cycle of crop and fallow years; it is typically practiced in areas with poor soils, such as tropical forests
a. shifting cultivation b. swidden cultivation c. slash and burn cultivation d. all of these are correct