In reference sources, vapor pressures reported usually assume a standard ambient temperature of _____.
a. o°F (-18°C)
b. 100°F (38°C)
c. 68°F (20°C)
d. 32°F (0°C)
Answer: c. 68°F (20°C)
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When excess nitrogen from industrialized agricultural fields enters rivers as runoff, which of the following happens first?
A. It promotes the growth of algae. B. It is consumed by bacteria. C. The nitrogen directly depletes the oxygen. D. The nitrogen poisons the fish.
Oceanic and atmospheric circulation patterns _____ during the Mesozoic
A)did not change B)greatly accelerated C)greatly decelerated D)accelerated in the Northern Hemisphere only E)accelerated in the Southern Hemisphere only
Think about the correlation of the celestial coordinate system, the tilt of the earth's axis, and the positions on Earth
If you are an observer in the Southern Hemisphere, 2 degrees north of the Tropic of Capricorn, What time of year will you be able to see the North Star? A) Never; you can never see the North Star from the Southern Hemisphere. B) on the Southern Hemisphere summer solstice, around Dec. 21 C) at the Northern Hemisphere summer solstice, around June 21 D) on the Southern Hemisphere vernal equinox
Which of the following is not a benefit of the OMEGA (offshore membrane enclosures for growing algae) system?
A) It does not take up valuable land space. B) It cleans municipal wastewater. C) It produces a biodiesel fuel. D) It does not lead to deforestation. E) It produces freshwater.