Cloud seeding is the process of artificially inducing rainfall. To provide relief from air pollution in Delhi after Diwali, the Delhi government, in collaboration with IIT-Kanpur, conducted cloud seeding on October 28. Due to atmospheric heat, water from oceans, rivers, lakes, and other water bodies evaporates into vapor. The process of converting vapor into liquid droplets is called condensation while the direct transformation of vapor into a solid is called deposition. Condensation occurs with the help of tiny particles suspended in the air. Examples include dust particles, other small particles, or volcanic ash. These tiny particles act as condensation nuclei. Water vapor gathers around these particles (condensation nuclei) and transforms into liquid droplets or ice crystals.

When many

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