Correct Option (b)
A. Graphite - 1. Bellary:
Bellary, located in Karnataka, is known for deposits of various non-metallic minerals, including graphite. It is also a significant iron ore mining region.
B. Lead - 4. Zawar:
Zawar in Rajasthan is a historically significant mining area, primarily known for its lead-zinc deposits. These mines are among the oldest in the world.
C. Salt - 2. Didwana:
Didwana, situated in the Nagaur district of Rajasthan, is an important inland salt lake. Salt production here primarily occurs through the evaporation of brine.
D. Silver - 3. Rampa:
Rampa, located in the Eastern Ghats region of Andhra Pradesh, has minor deposits of silver and gold, often found in association with polymetallic veins.
Incorrect Options
The other options present incorrect pairings of minerals with their primary mining areas. For instance:
- Option 1 (A-3 B-4 C-1 D-2) incorrectly matches Graphite with Rampa and Salt with Bellary.
- Option 3 (A-3 B-1 C-4 D-2) incorrectly matches Graphite with Rampa, Lead with Bellary, and Salt with Zawar.
- Option 4 (A-2 B-3 C-1 D-4) incorrectly matches Graphite with Didwana, Lead with Rampa, Salt with Bellary, and Silver with Zawar.
The correct associations are Graphite with Bellary, Lead with Zawar, Salt with Didwana, and Silver with Rampa.