If you travel away from a mid-ocean ridge you will find ________
A) increasingly older rocks
B) increasingly younger rocks
C) the seafloor is drifting opposite to your direction of motion
D) more and more earthquakes
E) little evidence of paleomagnetic reversals of the poles
Answer: A
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Indicate whether this statement is true or false.
Which statement about genetic mutations is false?
A) Genetic mutations are always harmful. B) Genetic mutations can be caused by ultraviolet light. C) Genetic mutations in eggs or sperm may be particularly significant because they can be passed to offspring, where they will affect every cell in the offspring's body. D) Genetic mutations are the ultimate source of all genetic variation, and so they provide the raw materials for evolution and natural selection.
Spheroidal weathering is a form of physical weathering. Indicate whether the statement is true or false
Cones of depression are caused by ____
a. rapid artesian flow b. pumping water wells c. perched water tables d. sinkholes