The longest topographic feature on Earth's surface is ________
A) the oceanic ridge system
B) continental-continental mountain ranges
C) hot spot volcanoes
D) volcanic island arcs
Answer is A) the oceanic ridge system
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Continental masses that presently are covered by continental glaciers: _________, _________. Fill in the blank(s) with the appropriate word(s)
Today, more than 50% of the U.S. importation of oil comes from
A) Saudi Arabia. B) Afghanistan and Iraq. C) the Western Hemisphere, especially Canada. D) China.
Large regions characterized by a certain climate and dominant plant life are called ____.
A. ecosystems B. communities C. populations D. habitats E. biomes
Which of the following is not an example of an intermolecular attraction?
A) covalent bonding B) dipole-dipole interactions C) London dispersion forces D) hydrogen bonding