When sea ice forms in high latitudes, the sea ice has ________
A) higher salinity than the ocean waters it forms from
B) the same salinity as the ocean waters it forms from
C) lower salinity than the ocean waters it forms from
D) It depends on the temperature. If conditions are far below freezing, the salinity is the same as the adjacent seawater; if it is close to freezing, the ice is essentially fresh water
C
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Which of the following statements describes a polar molecule?
A. The molecules are usually not attracted to one another very strongly. B. The molecules have a high degree of symmetry. C. Polar molecules have the weakest intermolecular interactions with ionic compounds. D. The electrons in the molecule are distributed evenly throughout the molecule. E. None of these statements describe polar molecules.
Steam fogs and frontal fogs are both types of ________ fogs
Fill in the blank(s) with correct word
Why are wetlands important?
A. They filter pollutants. B. They provide habitat. C. They reduce flooding. D. All of these choices are correct.
In some thunderstorms, lightning is seen but thunder does not get produced by the lightning
a. True b. False