UPSC Previous Year Question | Prelims GS | 2020

Consider the following activities: 1. Spraying pesticides on a crop field 2. Inspecting the craters of active volcanoes 3. Collecting breath samples from spouting whales for DNA analysis. At the present level of technology, which of the above activities can be successfully carried out by using drones?

  1. 1 and 2 only
  2. 2 and 3 only
  3. 1 and 3 only
  4. 1, 2 and 3

Answer

Correct Answer

1, 2 and 3

Explanation

Drones are already used for crop spraying, for surveying volcano craters, and for collecting whale exhalation ('blow') samples for DNA and hormone analysis.

Topics: aerospace & robotics, applications of drones, defence, drones (uavs), science & technology