What is the main reason mountaintops are so cold?
A) The air is thinner at higher altitudes.
B) Mountaintops are above much of the greenhouse gas in the atmosphere.
C) The winds are stronger at higher altitudes.
D) There is more water vapor at higher altitudes, causing there to be more snow.
E) All of the above are true.
Question 2
How might Mars's weakened magnetic field have allowed for major changes in its climate?
A) Atmospheric gases were left vulnerable to being stripped into space by solar wind particles.
B) The heat combined with the magnetic field, and disappeared with it.
C) Mars has actually heated up since the magnetic field weakened, since the solar rays no longer have such a dense layer to get through.
D) They are completely unrelated; there is no possible influence.
The main events of mitosis and meiosis
Brice Marden, Cold Mountain 6 (Bridge).
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Cold Front
Higher-Order Conditioning