Name the disease caused by deficiency of vitamin-K.

Explanation

**Step-by-Step Solution:**

1. **Understanding Vitamin K**: Vitamin K is a fat-soluble vitamin that plays a crucial role in blood clotting and bone metabolism. It is essential for synthesizing proteins that regulate blood coagulation.

2. **Identifying the Deficiency**: A deficiency in vitamin K can lead to various health issues. The most notable condition associated with vitamin K deficiency is bleeding disorders due to impaired blood clotting.

3. **Main Disease Associated**: The primary disease caused by vitamin K deficiency is **hemorrhagic disease**. In severe cases, it can lead to excessive bleeding, which can be life-threatening.

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