Name the vitamins whose deficiency causes (i) Night blindness (ii) Poor coagulation of blood (ii) Rickets (iv) Skin diseases.

Explanation

To answer the question regarding the vitamins whose deficiency causes specific health issues, we can break it down step by step:

### Step-by-Step Solution:

1. **Night Blindness**:
- **Vitamin Deficiency**: The deficiency that causes night blindness is **Vitamin A**.
- **Explanation**: Vitamin A is essential for maintaining healthy vision, particularly in low-light conditions. Its deficiency can lead to a condition where the eyes cannot adjust to darkness, resulting in night blindness.

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