Which of the following statements is true regarding the relationship between air pressure and altitude?
A. As one moves up in the atmosphere, pressure decreases; as one moves closer to the earth's surface, pressure increases.
B. As one moves lower in the atmosphere, pressure decreases; as one moves closer to the earth's surface, pressure decreases.
C. As one moves lower in the atmosphere, pressure decreases; as one moves closer to the earth's surface, pressure increases.
D. As one moves up in the atmosphere, pressure increases; as one moves closer to the earth's surface, pressure increases.
Answer: A
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Which of the following could be responsible for the most recent warming trend in the northern hemisphere?
A. increase in levels of CO2 B. increase in volcanic eruptions C. light-coloured particles in the stratosphere D. decrease in energy emitted by the sun
Which one of the following is likely to result from damming a river?
A) Access to buried resources in flooded land is greatly increased. B) Wetland habitats are expanded. C) The frequency and severity of floods decreases, and opportunities for hydroelectric power open. D) Water cools and contains more oxygen.
The mT air masses that affect the United States do not form over the
A) Gulf of Mexico. B) Caribbean Sea. C) subtropical western Atlantic Ocean. D) subtropical eastern Pacific Ocean. E) midlatitude northern Pacific Ocean.
Weather deals in days, while climate deals in decades, centuries, and even millennia
Indicate whether the statement is true or false