Residence times are dependent upon steady-state conditions and a well-mixed ocean
a. True
b. False
True
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If 1,500 people migrate into Goodhue, MN and 1,000 people move out, gross migration is
A) 2,500. B) 1,500. C) 1,000. D) 500. E) negative 500.
A cratonic sequence is ____
a. localized b. short-lived c. large-scale d. determined by the fossil content of a craton e. when cratonic rocks are ordered via numerical dating
You are swimming with your buddies on a beach in the surf. You leave your cooler and supplies on the beach, and after a half hour you swim back to shore, but your stuff isn't there. You look along the beach and see your cooler 200 m down the beach. How did that happen?
What will be an ideal response?
The greenhouse effect occurs due to ________.
A. CO2 reflecting heat back towards the earth's surface B. CO2 deflecting heat away from the earth surface C. the lack of CO2 D. ozone attaching itself to the CO2 and replacing a portion of the earth's oxygen