Atmospheric Pressure and Winds
- The force per unit area exerted on the surface of earth by weight of the air above that surface is known as atmospheric pressure. The upper layers of atmosphere exert pressure on the lower layers.
- Atmospheric pressure is measured by an instrument known as barometer. Standard se
- Wind is the horizontal movement of air from areas of high pressure to areas of low pressure caused by the uneven heating of earth by the sun. Winds can be characterised on the bases of their direction, deflection and, speed.
- Wind Direction can be measured with the help of wind