A contour interval is the lines on a topographic map that state the height (from sea level) of the hill, valley, mountain or the ground level.
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The process in which two gametes unite is called fertilization.
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Lichen will colonize the bare rock.
<span>The grasslands typically lie in the middle of large lanmasses, or the interior of continents, where rivers are most likely to flow far away from seawater sources. Here the ever
present value of water can be seen, as it supplies the source of life to all the plants and animals in the ecosystem in a lush and relatively cushy environment when compared to
the biomes like the desert or savannah.</span>
The scales or outer layer of an artichoke are called bracts
