Give two important contributions of Dr. M.S. Swaminathan

Explanation

**Step-by-Step Solution:**

1. **Introduction to Dr. M.S. Swaminathan:**
- Dr. M.S. Swaminathan is widely recognized as the "Father of the Green Revolution" in India. His work has significantly impacted agricultural practices and food production in the country.

2. **First Contribution - High Yield Variety of Wheat:**
- One of his major contributions is the development of high-yielding varieties of wheat. Specifically, he developed two notable varieties: Sonalika and Kalyan Sona. These varieties played a crucial role in increasing wheat production in India, helping to alleviate food shortages.

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