An estuary that is found within the mouth of a river where freshwater flows out to sea at the surface while seawater flows upstream along the bottom is ________.
A. well mixed
B. a salt wedge
C. a fjord
D. partially mixed
E. All of these are correct.
Answer: B
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Fungi
A) include both unicellular and multicellular organisms. B) include both autotrophs and heterotrophs. C) always reproduce asexually using spores. D) cause tuberculosis and Lyme disease in humans.
The 1995 Nobel Prize in Chemistry was awarded to three scientists whose work led to discovery of the causes for the thinning of the earth’s atmosphere by chlorofluorocarbons. Which of the following was NOT one of these scientists?
a) Mario Molina b) Paul Crutzen c) Sherwood Rowland d) Aldo Leopold
The slippage or displacement of rocks along a fracture surface is:
a. jointing. b. plutonism. c. relief. d. faulting. e. folding.
The polar front jet stream is stronger in ____________________ than in ____________________
Fill in the blank with correct word.