Question

When does a wind blow ?

• A. When there is no change in temperature betwen the regions.
• B. When there is a pressure difference between the regions.
• C. During earthquake.
• D. When there is no pressure difference between the region.

Answer 1

The correct option is B

When there is a pressure difference between the regions.

The wind blows because of differences in air pressure between the two regions. The wind blows from the region of high pressure towards the region of low pressure. The speed of air depends on the difference in air pressure. More the difference more is the speed of blowing air.