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11. All of these contribute directly to fertile topsoil except a. bedrock chemical reactions. b. minerals supplied by rock particles. c. decomposition action of fungi and bacteria. d. earthworms' breaking
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38 votes
38 votes
11. All of these contribute directly to fertile topsoil except

a. bedrock chemical reactions.
b. minerals supplied by rock particles.
c. decomposition action of fungi and bacteria.
d. earthworms' breaking down the soil.

User Kanika
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13 votes
13 votes
The answer is A. bedrock chemical reactions
User Morynicz
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