To predict floods, scientists ____.
A)monitor a stream's water levels
B)evaluate a stream's past behavior
C)assume the same behavior as last year
D)monitor water levels and evaluate past behavior for a stream
E)makes guesses, as floods cannot be predicted.
Question 2Partial melting of oceanic crust and silica-rich sediments of continental margins ____.
A)yields magma richer in basalt than the source rock
B)is a major cause of earthquakes
C)causes off-gassing which increases global warming
D)yields magma richer in silica than the source rock
E)will form sedimentary rock
Question 3Briefly explain why critics did not readily accept the Darwin-Wallace theory of natural selection. What possibilities did they ignore?
Question 4What do scientists mean when they say that a flood is a 100-year flood?
A)A flood of that magnitude will occur once every 100 years.
B)Every year there is a 1 chance of a flood of a certain magnitude occurring.
C)There isn't enough information to determine how frequently flooding occurs.
D)Every year, there is a 10 chance of a flood of a certain magnitude occurring.
E)The last time a flood of that size occurred was 100 years ago.
Question 5An igneous rock with no visible crystals ____.
A)has a phaneritic texture
B)cooled quickly in a magma chamber
C)slowly on Earth's surface
D)cooled quickly on Earth's surface
E)is granite
Question 6In addition to fossils, what are other types of evidence for evolutionary theory?
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