Given the three compounds (i) acetic acid (ii) ethyl formate (iii) hydroxypropanone 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.
C
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During the formation of snow, the atmospheric temperature profile is:
A) almost entirely below freezing. B) below freezing in the upper part of the atmosphere. C) below freezing in the lower part of the atmosphere. D) above freezing in the middle part of the atmosphere. E) none of the above
A form of a biome is largely predicted by its
A) diversity of plant and animal species. B) diversity of soil microorganisms. C) temperature and rainfall. D) distance from the ocean.
Depressions that result primarily from the surface or near-surface solution of rock and removal of the dissolved materials by water infiltrating downward into the subsurface are called _______________. (two words)
Fill in the blank(s) with correct word
Except in the rainy tropics, virtually all needleleaf trees are ________
A) evergreen B) deciduous C) succulents D) annuals E) extinct