UPSC PRELIMS · GEOGRAPHY · SCIENCE & TECHNOLOGY — DRONES
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 using drones?
Take a breath. Choose one. Press A–D on your keyboard if you like.
EXPLANATION
Drones can spray agricultural chemicals, inspect dangerous volcanic craters and collect biological samples from whales.
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