The Prime Meridian marks zero degrees longitude. Without it, the other degrees of longitude cannot be measured.
<span>Population density </span><span>defines the average number of people living within a square mile.
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Explanation:
first answer should be homeostasis.
second should be second option maybe.
Third option B because only living things have cells in cells are not present in non living things
hope it helps
I'm not 100% sure but I think the answer you are looking for is something like for example; Forest, grassland, tundra, desert, & maybe Ice sheets.
