How much salt is dissolved in a kilogram of typical seawater?
A. 1 gram.
B. 15 grams.
C. 35 grams.
D. 0.1 grams.
Ans: C. 35 grams.
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Black bodies
A) can only approximate the Stefan-Boltzmann law. B) are hypothetical; they don't actually exist. C) emit the same amount of energy regardless of their temperatures. D) do not emit radiation as well as gray bodies do.
Policies for conserving biodiversity have been set aside in a number of important pieces of specific U.S. legislation
Explain two pieces of legislation that directly address biodiversity preservation issues, making sure to discuss how the legislation attempts to accomplish its goals.
Which of the following is a starting material in the synthesis of nitroglycerin?
A) ethylene glycol B) 1,2-propanediol C) 1,3-propanediol D) 1,2,3-propanetriol
Mercury, Venus, Earth, and Mars are smaller in size and closer to the sun than Jupiter, Saturn, Uranus, or Neptune.
a. true b. false