True/False: Surface low-pressure systems are maintained and strengthened by divergence aloft.
a. False
b. True
b. True
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Given the three compounds (i) ethyl formate (ii) hydroxyacetone (iii) propanoic acid Which are constitutional isomers of one another?
A) only (i) and (ii) B) only (i) and (iii) C) only (ii) and (iii) D) They are all constitutional isomers of one another.
Which of the following is true?
A) Lightning results from the buildup of electrical energy within clouds or between the cloud and the ground. B) Thunder is caused by rapid contraction of the air. C) The majority of lightning strikes occur over the oceans because of high rates of evaporation and friction. D) Lightning is relatively uncommon on the Earth. E) Thunder is caused by rapid cooling of the air.
The gently sloping and fast-spreading parts of the mid-ocean ridge are called ________
A) guyots B) nemataths C) oceanic ridges D) oceanic rises E) volcanic arcs
An organism's range of tolerance is best described as ________
A) the difference between the amount of food available and its consumption of that food B) the difference between the amount of sunlight tolerated and the amount of sunlight available C) the total amount of pollutants experienced by an organism D) the range of precipitation that falls on a given area E) the span between the minimum and maximum temperatures in which an organism flourishes