Answer: <em>air also has water vapor</em>
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<em>Explanation: hope t helps i remember this from science last year but i probably forgot about it</em>
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I think you mean population density lol if so then the answer would be the relationship between the size of a certain area in the number of people who live there. Because geographers use it to measure a number of people living in a certain area. I hope this helps!
C. plant two or more crops per year
Earth has layers, similar to an egg. The first layer of earth is the thinnest, like an eggshell, and it's called the crust. Next, there's the mantle. This part is like the liquid egg whites, because it's three layers (named lithosphere, asthenosphere, and mesosphere) are constantly flowing and moving. Lastly, the core, which is the yolk of an egg. Hope this helped!
