When magma forms, it rises up through the crust. Why does magma rise?
A) It is forced upward by pressure from the Earth's interior.
B) It is less dense.
C) It is uplifted by tectonism.
D) It is forced out by volcanism.
Answer: B
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Relative to latitude and surface energy receipts, which of the following is true?
A) Insolation intensity decreases with distance from the subsolar point. B) Seasonal effects increase toward the equator. C) Day length decreases with increasing latitude in summer. D) The greatest seasonal variability occurs at exceptionally high latitudes. E) Insolation intensity increases with distance from the subsolar point.
Per capita meat consumption has ________ since 1950
A) doubled B) increased by 50% C) increased fivefold D) dropped by 50% E) tripled
The synthesis of glutamate from a-ketoglutarate is an example of which of the following?
A) reductive amination B) reductive deamination C) oxidative amination D) oxidative deamination
Pharmaceuticals produced from wild species generate up to $150 billion in sales and save many lives each year. This is an example of ________.
Fill in the blank(s) with the appropriate word(s).