Irregular heating of the air can produce thermals, which are ________
A) pockets of cold air that sink B) pockets of warm air that rise
C) pockets of warm air that sink D) pockets of cold air that rise
B
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____ is the tool to finding solutions for environmental problems
A) Education B) Research C) Commissions and policies D) Time
Which of these was NOT involved with the formation and evolution of our present atmosphere?
A) outgassing B) photosynthesis C) stratification D) cooling
The first function of water vapor in the earth's original atmosphere was to:
A) create oxygen. B) increase the amount of carbon dioxide in the atmosphere. C) block the solar wind. D) fall as rain and thus fill the oceans. E) provide needed nourishment for primitive plants.
Which of the following has the highest boiling point?
A) 2-butanone B) 2-heptanone C) 2-hexanone D) 2-pentanone