Explain with examples : macronutrients, micronutrients, beneficial nutrients, toxic elements and essential elements.

Explanation

### Step-by-Step Solution:

1. **Macronutrients**:
- **Definition**: Macronutrients are nutrients that plants require in large quantities for their growth and development.
- **Quantity**: They are typically present in amounts greater than 10 millimoles per kg of dry matter.
- **Examples**: Common macronutrients include:
- **Hydrogen (H)**
- **Oxygen (O)**
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