State what will happen if plants are supplied with:
(i) excess of sulphur.
(ii) low content of nitrogen.
(iii) excess of nitrogen.

Explanation

### Step-by-Step Solution:

1. **Excess of Sulphur:**
- When plants are supplied with an excess amount of sulphur, it can lead to enhanced root development.
- Additionally, the formation of nodules in the plant will increase. These nodules are often associated with nitrogen-fixing bacteria, which can be beneficial for the plant's nutrient uptake.

2. **Low Content of Nitrogen:**
- If plants are provided with a low content of nitrogen, their growth will be adversely affected.
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