Question

why is the soil loosened before seeds are sown?
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Answer 1

Answer:

Preparation is the first step before growing a crop. The soil is tilled to loosen the soil particles for better absorption of water and manure. Loosening of soil particles add humus and nutrition to the soil by helping in the growth of earthworms and microbes. ... Once the soil is thus prepared, the seeds can be sown.

Explanation:

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Answer 2

Answer:

so that seeds get sufficient air/oxygen for germination.

oxygen is one of the main requirements for the germination of the seed.