It has been suggested that Archaea may be more closely related to Eukarya than Bacteria
a. True
b. False
True
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Water vapor is a greenhouse gas. Why is it not a concern regarding climate change?
A) Water vapor is dense and settles low in the troposphere. B) There is a low concentration of water vapor in air. C) Greenhouse gases do not affect the climate. D) The rate of precipitation balances the rate of evaporation of water.
Which process is thought to generate most felsic magmas?
A) Decompression melting in a continental rift zone B) Crystal settling during magmatic differentiation C) Heat from basaltic magma partially melting overlying crust D) Friction along the crust in a convergent plate boundary
Which of the following describes the saturation vapour pressure over water when the air temperature is below freezing?
A. equal to the saturation vapour pressure over ice B. greater than the saturation vapour pressure over ice C. equal to zero D. less than the saturation vapour pressure over ice
The subregion of Latin America with the lowest population growth rates is
A. Middle America B. Caribbean Basin C. Northern South America D. Southern South America