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All right.
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So in this question, you are walking up a mountain and you're being asked to think about what things you might actually see change and then which of the things wouldn't.
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So in this case, we're looking at elevation, rainfall, latitude, and temperature.
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And all of these things except one, we can expect to change.
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Well, let's start out and think about what you might actually experience as you're going up the mountain.
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First off, you might notice that the temperature gets colder as you climb higher and higher away from the surface.
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So temperature is dropping.
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The second thing is the fact that you're going higher and higher means that you're being raised in elevation, which is a measure of how high you are relative to a certain level, especially sea level.
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So as you're going up, you're going up more and more feet, and that's a measure of how high you are relative to a certain level, especially sea level...