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- Soil is composed of distinct layers; the lowest layer consisting of hard rock is called
. Soil is composed of distinct layers; the lowest layer consisting of hard rock is called
(a) stone.
(b) silt.
(c) gravel.
(d) bedrock.
Best Answer
(d) Bedrock.
Explanation. The lower most layer is composed of hard rock which does not support any type of vegetation.
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