In which of the following classes of organic compounds must there be at least two oxygen atoms?
A) carboxylic acids
B) carboxylic esters
C) both a and b
D) neither a nor b
C
Environmental & Atmospheric Sciences
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Which of the following best matches the description?The increase in the temperature of the earth's atmosphere
A. CFCs. B. Nitrous oxide. C. climate change. D. greenhouse gases. E. Greenhouse effect. F. IPCC. G. Global warming. H. Carbon dioxide. I. Kyoto Protocol. J. Methane.
Environmental & Atmospheric Sciences
Give three examples of zooplankton: _______, _______, and _______. Fill in the blank(s) with the appropriate word(s)
Environmental & Atmospheric Sciences
True or False: All past changes in sea level were due to the growth and demise of glaciers
Indicate whether this statement is true or false.
Environmental & Atmospheric Sciences
Because of the low relative mass, the gravitational attraction on the moon is ________ that of the Earth
A) 1/2 B) 1/4 C) 1/6 D) 1/8
Environmental & Atmospheric Sciences