How is a drought caused and what at the geographical process involved.?
We already know that a drought occurs when not enough rain falls to the ground. However, water vapor condenses only if air rises into the colder regions of the atmosphere. If the air doesn’t rise, then no rain will form. When there is high air pressure, air falls instead of rising. With the air pressing down in a high pressure zone, no currents of water vapor are carried upward. As a result, no condensation occurs, and little rain falls to earth. In addition, high-pressure areas push clouds and air currents downward and away, resulting in sunny, cloudless weather. Low-pressure systems see more cloudy, stormy weather. HOPE IT HELPED.
