The Movement Of Air : Wind
Wind, Storms And Cyclones of Class 7
The Movement Of Air
All the places on Earth are not equally heated up by the sun. When a place becomes heated, the surrounding air also becomes warm. The warm air, being lighter, rises up. A low pressure area is created there. The cold air from the cooler and high pressure regions then moves in to take its place. This movement of air takes place due to uneven heating of different places on the Earth. Due to the unequal heating of places, convection currents are produced in the air. When air moves horizontally, it is called wind.
Water vapours are formed due to the heating of water bodies by solar radiations as well as the activities of living organisms.
The phenomena like movement of air (whether the movement of air will be in the form of a gentle breeze, a strong wind or a terrible storm) and the rain are the result of changes that take place in our atmosphere due to the uneven heating of air and the formation of water vapours. However, couples of other factors like the rotation of Earth, the presence of mountain ranges in the path of the winds also influence.
- Introduction
- The Onset Of The Monsoon And Withdrawal
- Factors Affecting India’S Climate
- Weather And Climate
- Climate Of India
- Climatic Controls
- The Movement Of Air : Wind
- Sea Breeze And Land Breeze
- Clouds And Rain (Condensation And Precipitation Of Water Vapour)
- Thunderstorms And Cyclones
- The Indian Monsoon
- The Seasons
- Advancing Monsoon (The Rainy Season)
- Retreating Monsoon (The Transition Season)
- Vagaries Of The Monsoons In India
- Distribution Of Precipitation In The Country
- Monsoon As A Unifying Bond
- Difference Between
- Mind Map
- solved questions
- Exercise-1
