Groups of hunter-gatherers in the Paleolithic time period probably lived ________.
A. in close proximity to each other
B. more isolated from each other
Answer: A
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Which process creates island chains with active volcanoes at one end??
a. ?Asthenospheric convection moves a magma plume under a stationary plate. b. ?Magma plumes form on the Earth’s outer core and rotate under a stationary plate. c. ?Divergent boundaries move plates away from a stationary magma plume. d. ?Convergent boundaries move the location of melting crust under a stationary plate. e. ?Crustal plates move over a stationary magma plume.
Which one of the following energy sources is most likely to lead to thermal pollution?
A) A coal-fired power plant B) A large field of windmills C) A hydroelectric plant D) A large field of solar cells
What large California city, located near the coast and surrounded by mountain ranges, is plagued by smog?
A) San Francisco B) Sacramento C) Los Angeles D) San Diego
The Goldilocks scenario suggests that we are very fortunate to be in the right place in the universe and to have had the right condition to develop and sustain life.
a. true b. false