Answer : 3. "एफएओ"
Explanation :

Solution: According to a report by the United Nations Food and Agriculture Organization (FAO), titled “Sand and dust storms: A guide for mitigation, adaptation, policy and risk management measures in agriculture”, sand and dust storms Agriculture poses a significant obstacle to achieving 11 of the 17 Sustainable Development Goals. Sand and dust storms are meteorological phenomena that involve powerful and turbulent winds that raise many small particles to significant heights.