Question

Cloud seeding is a technique used, to induce rain that was first used by the USA in 1946. It has also been done in Karnataka and other places in India. What is it?

• A. An agricultural practice that depends on clouds
• B. Introduction of particles in clouds to increase condensation
• C. Making clouds and placing them in the sky.
• D. Trimming the clouds into seed like structures

Answer 1

The correct option is B Introduction of particles in clouds to increase condensation

During rainfall, water droplets condense onto one another, causing the droplets to grow. When these water droplets get too heavy to stay suspended in the cloud, they fall to earth as rain.

In 1946, USA developed a technique called cloud seeding, in which they increase the process of condensation by introducing particles in the cloud. With the increase in condensation, droplets start forming at faster rate and hence, increase the rainfall.