When viewed from the equator (0 degrees latitude), Polaris lies on the northern horizon. As an observer moves northward--say, to Houston, Tex. (30 degrees latitude)-- Polaris is located 30 degrees above the northern horizon.
One simple and easy way that scientists can accurately date fossils found is through the ground levels. When you take a big chunk out of the earth, you can see the changes in the texture in the "ground" Each "layer" represents a set of years. And as you get further and further into the ground, fossils become older and older.
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Bordered by Jordan to the east and by Israel and Palestine to the west, the Dead Sea is a landlocked lake rather than a true sea, and is recognized as one of the saltiest bodies of water on Earth. Its name is well earned — no fish, birds or plants can survive in its high-saline environment
