Why are manure and fertilizers used in fields?

Explanation

### Step-by-Step Solution:

1. **Definition of Manure and Fertilizers**:
- Manure is organic matter derived from animal waste, while fertilizers are chemical substances that provide essential nutrients to plants.

2. **Purpose of Using Manure and Fertilizers**:
- Both manure and fertilizers are used to increase the fertility of the soil. Fertility refers to the soil's ability to provide essential nutrients to plants.

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