c) Limestone
d) Bauxite
21. u
12. How does the Indian constitution provide representation to adivasis and scheduled
caste groups?
(1 mark)
OR
Answers
Answer:
Essay on Cyclone.
Explanation:
The cyclones are irregular wind movements involving closed air circulation around a low pressure centre. This closed air circulation is caused by atmospheric disturbances over and above the earth’s surface, coupled with the earth’s ‘rotation which imparts to these disturbances a whirling motion.
Cyclones are associated with destructive and violent disturbances, such as heavy squalls and torrential rainfall.
The cyclones level down inequalities of pressure and wind movement over the globe. They play an important role in the complex process of heat exchange between various latitudinal zones.
Cyclones have a bearing over the phenomenon of precipitation, especially in mid-latitude regions, by lifting up the moist air from oceans and taking it into the surrounding landmasses.