Who proposed first the Continental Drift Hypothesis?
a. Alfred Wagener
b. Harry Hess
c. James Hutton
d. Charles Darwin
Ans: a. Alfred Wagener
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What connects plankton in categories?
a. Evolutionary history b. Ecology c. Morphology d. Consumption methods
It is difficult to measure the productivity of public services because these services do not have a market value
Indicate whether the statement is true or false
The atmospheric greenhouse effect is produced mainly by the absorption and re-emission of
a. ?visible light by the atmosphere. b. ?ultraviolet radiation by the atmosphere. c. ?infrared radiation by the atmosphere. d. ?visible light by clouds. e. ?visible light by the ground.
The high surface temperatures of ________ have been attributed to the greenhouse effect
A) Venus B) Mercury C) Uranus D) Mars