Please help me TT

Why do farmers let some fields lie fallow?
A) to fight off destructive insects
B) to keep the peasants healthy
C) to increase the soil’s productivity
D) to rest the horses

C

Explanation:

What Is a Fallow Field? A fallow field is land that a farmer plows but does not cultivate for one or more seasons to allow the field to become more fertile again. The practice of leaving fields fallow dates back to ancient times when farmers realized that using soil over and over again depleted its nutrients.

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