Answers

2016-02-10T22:18:46+08:00
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SOIL WERE ONCE ROCKS ---> this sentence just means that before the soil became soil, they were made of rocks originally, and rocks were just turned into soil thru human or nature's intervention. Human intervention like mining, and nature's interventions like earthquakes, erosion, raining, and others.
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2016-02-17T16:46:49+08:00
SOIL WERE ONCE ROCKS ---> this sentence just means that before the soil became soil, they were made of rocks originally, and rocks were just turned into soil thru human or nature's intervention. Human intervention like mining, and nature's interventions like earthquakes, erosion, raining, and others.
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