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Q. |
The chemicals most commonly used for cloud seeding or artificial rainmaking' is/are |
A. | Silver Iodide |
B. | Sodium Chloride |
C. | Dry ice or frozen carbon dioxide |
D. | (4) All the above |
Answer» A. Silver Iodide | |
Explanation: Cloud seeding, a form of intentional weather modification, is the attempt to change the amount or type of precipitation that falls from clouds, by dispersing substances into the air that serve as cloud condensation or ice nuclei, which alter the rnicrophysical processes within the cloud. The usual intent is to increase precipitation (rain or snow), but hail and fog suppression are also widely practiced in airports. The most common chemicals used for cloud seeding include silver iodide and dry ice (solid carbon dioxide). |
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