Artificial way of causing rainfall to reduce air pollution makes use of

Artificial way of causing rainfall to reduce air pollution makes use of
  1. silver iodide and potassium iodide
  2. silver nitrate and potassium iodide
  3. silver iodide and potassium nitrate
  4. silver nitrate and potassium chloride

Solution

Cloud seeding uses silver iodide and potassium iodide (along with dry ice or NaCl) as ice nuclei to artificially induce rainfall.

Asked in: UPSC Prelims 2025

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