gs1medium

Consider the following activities:

  1. 1.Spraying pesticides on a crop field
  2. 2.Inspecting the craters of active volcanoes
  3. 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. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
▶ Answer & Explanation

Correct answer: D. 1, 2 and 3

Drones equipped with specialized payloads are capable of agricultural spraying, thus enabling targeted and efficient application of pesticides. Similarly, advanced drones with robust sensors and heat-resistant capabilities can survey active volcanic craters from a safe distance. Furthermore, drones can be outfitted to collect biological samples, such as breath aerosols from whales, facilitating scientific research and conservation efforts without direct human intervention.

Source: UPSC gs1 2020

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