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Which best describes the changes occurring to the earth's surface over time?
1.) Mountains are gradually being worn down, but no new ones are formed
2.) New mountains are being formed as old mountains are gradually worn down
3.) More mountains are gradually formed as the oceans recede.
4.) New mountains are only formed under the oceans.
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Which best describes the changes occurring to the earth's surface over time?
1.) Mountains are grad...
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