Elements required by plants in relatively large amounts are …………………………….. and in very small amounts are …………………………………..

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Macronutrients and Micronutrients**:
- Plants require various elements for their growth and development. These elements can be categorized based on the quantity required by the plants.

2. **Identifying Macronutrients**:
- Elements required by plants in relatively large amounts are known as **macronutrients**.
- There are about 17 essential elements classified as macronutrients, which include:
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