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Lyrx [107]
3 years ago
12

What is the first step in the formation of soil?

Geography
1 answer:
frez [133]3 years ago
7 0
The first step in soil formation is the weathering of parent rock into smaller pieces. 
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The boundary between the crust and the mantle is marked by an abrupt change in seismic velocity called the ________.
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Seismologists indicate that the average thickness of granitic continental crust is about 35 kilometers. Make the same kind of ca
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542.5 km

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7. A porphyritic texture indicates that an igneous rock had
masha68 [24]

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extrusive rocks.

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