3. Recently, Unmanned Aerial Vehicle (UAV) were used for the first time to drop explosive devices, triggering blasts inside the Air Force Station’s technical area in Jammu. UAV’s are used in which of the following purposes?
- 1. Package Delivery
- 2. in Agriculture for spraying pesticides
- 3. Monitoring Environmental Changes
- 4. Aerial Photography
Select the correct answer using the code given below: