2024 · Q33
Consider the following characteristics of a type of wind:
- 1They occur at upper levels in the atmosphere
- 2They are subjected to two forces, a pressure gradient force and the Coriolis force
- 3When the forces balance, air moves at right angles to the pressure gradient, parallel to the isobars Identify the type of wind on the basis of the given characteristics:
indian-world-geographyclimatology
- AJet Stream
- BGeostrophic Wind
- CWesterlies
- DEasterlies
Explanation
The Chota Nagpur Plateau — the 'mineral heartland of India' — is underlain by ancient Gondwana and Archean rocks that host India's richest deposits of coal (Jharia, Bokaro, Raniganj fringes), iron ore (Singhbhum), mica, bauxite, copper and uranium. Its mineral wealth is the primary reason for the concentration of iron-and-steel plants (Jamshedpur, Bokaro, Rourkela nearby), heavy engineering and thermal power stations in the region. The other options (cheap labour, nearness to sea, public-sector incentives) are secondary at best. Hence B is correct.