Q.

What among following is used to produce artificial rain?

A. Copper oxide
B. carbon monoxide
C. silver iodide
D. silver nitrate
Answer» C. silver iodide
Explanation: Artificial process of making rain is done by precipitation, a process of condensation of water vapors in the air. This is done by using cloud seeding chemicals like potassium iodide, silver iodide, liquid propane or solid carbon dioxide (dry ice).
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