Desertification occurs<span> due to a decrease in vegetation. This can </span>happen<span> naturally due to a drought or can be caused by human activities. The lack of plants can cause changes to the land. Plants help shade the soil, so when plants are removed, the soil will be exposed to the sun and will dry out more quickly. So, I would say C. An area of forest is clear cut.
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During the Ice Age, when the water level dropped and the ocean froze around the Arctic, the Bering Land Bridge (Beringia) formed between Alaska and Russia.
The answer is:
A number larger than 180 degrees.
Light beam messages are used in the hope of making contact with aliens and towards two planets that may be capable of supporting life. The messages were directed towards a red dwarf star and is expected to twelve (12) years to reach it.
Answer: B
Explanation:
A galaxy is a system of solar systems and other stars. Galaxies, like solar systems, are held together by gravity. In galaxies, the solar systems are separated by vast sections of mostly empty space. The galaxy that contains the Earth and its solar system is called the Milky Way.
