Mesozoic-age coal deposits in the United States are the primary source of coal in this country. Indicate whether the statement is true or false
F
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Schooling behavior makes normally small fish appear like a large organism from a distance
Indicate whether the statement is true or false
What is MTBE?
A) a pollutant that dissolves in ground water B) a natural component of gasoline C) a pollutant that sinks to the bottom of an aquifer D) a carcinogen that rises to the top of the water table
Slow flowing, more viscous basaltic lava commonly has a rough, blocky texture called ________.
A. cc B. bb C. pahoehoe D. aa E. poi
What is NOT true about tides?
A. They are caused by a gravitational pull on the oceans. B. They appear to advance and retreat at coasts. C. Each place on Earth has the same tidal range. D. The size of the tide varies with the pull of the Sun or Moon. E. It causes vertical “bulges” in the sea surface.