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UPSC Prelims 2020 Paper-1 📅 04 Oct, 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?

A
1 and 2 only
B
2 and 3 only
C
1 and 3 only
D
1, 2 and 3
Result Summary
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UPSC Prelims
2020 • 04 Oct, 2020 • Paper-1
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?
Correct Answer
1, 2 and 3
Agricultural Use: Drones are heavily utilized in modern precision agriculture to spray fertilizers and pesticides efficiently over large areas, reducing human l......
Ref/Book : UPSC Prelims 2020
Ref. Subject Science & Technology
Chapter -
Ref. Topic Emerging Technologies
Pg. No -
💡 Analysis & Explanation
Agricultural Use ▼
Drones are heavily utilized in modern precision agriculture to spray fertilizers and pesticides efficiently over large areas, reducing human labor and exposure. Statement 1 is practically implemented.
Volcanic Research ▼
Unmanned aerial vehicles (UAVs) can safely fly into extremely hazardous, toxic environments like active volcanic craters to collect gas samples and capture thermal imaging, replacing human risk. Statement 2 is a known application.
Marine Biology ▼
Specialized drones, sometimes colloquially called "SnotBots," are actively used by marine biologists to hover above surfacing whales and catch their exhaled blow, which contains valuable DNA and hormones, without disturbing the animals. Statement 3 is correct.
Conclusion ▼
All three activities represent current, successful real-world applications of drone technology.
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