Consider the following activities :
- Spraying pesticides on a crop field
- Inspecting the craters of active volcanoes
- 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: Option D
Drone technology has expanded beyond defense to areas like emergency response, humanitarian relief, healthcare, and weather forecasting.
Statement 1: Drones are used for spraying pesticides on crop fields. While it was considered illegal in India at the time of the question, it was legally practiced in many states in the US. Hence, technologically feasible.
Statement 2: Drones are used to inspect the craters of active volcanoes, providing access to areas too dangerous for humans.
Statement 3: Drones have been used by scientists to collect breath samples (mucus/water sprays) from whales to examine their health by analyzing DNA, proteins, lipids, and bacteria present in the sample.
Therefore, all three activities can be successfully carried out using drones at the present level of technology.
Hence, option (d) is the correct answer.