Question

complete the following statement

1. topsoil is a resource because microorganisms __________
2. fertility of topsoil requires a balance of ________
3. it takes 500 years for __________ ​

Answer 1

Explanation:

1. Are present
2. humus
3. soil formation

Answer 2

Answer:

1. are present
2. nutrients
3. soil formation

Explanation:

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