The solar constant is
A. the same value for all planets, even Neptune.
B. the same for a sphere or for a circle.
C. only about a quarter of all energy emitted by the sun.
D. consistent amount of energy received at the top of the atmosphere.
Answer: D
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A threshold dose-response model
A. implies there is a dose below which no detectable harmful effects occur. B. errs on the side of safety. C. implies that each dose of a harmful substance carries a risk of causing harm. D. is useful for assessing chronic toxicity. E. assumes chemicals vary widely in their toxicity.
________ denotes the exposed, crescent-shaped rupture surface at the head of a slump
A) Scoop B) Scarp C) Toe D) Sole
What type of coal is the most common in the United States?
A. Anthracite B. Lignite C. Bituminous D. Subbituminous
The Roman Catholic religion has more of a unifying effect in Brazil than the Portuguese language.
a. true b. false