________ is a principal culprit in the formation of acid rain
What will be an ideal response?
Answer: Sulfuric acid, Nitric acid, Smokestack emissions, or Vehicle exhaust
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Lightweight Jane and heavyweight Jack wish to parachute at equal terminal velocities. Jack should
A. pull upward on the supporting strands to decrease the downward net force. B. use a larger parachute. C. jump lightly. D. jump first.
What is the magnitude and direction of the gravitational force on a person who weighs 600 N at Earth's surface?
A. 600 N upward. B. 600 N downward. C. 600 N times 10 m/s2. D. none of the above
La Niña
A) always lasts for the same period of time as the previous El Niño. B) only affects the Northern Hemisphere. C) can lead to drought in the southern United States. D) has nothing to do with ocean temperatures and circulation.
What percentage of precipitation falls over oceans?
A) 2 B) 14 C) 66 D) 78 E) 86