In India, the battery production industry faces a shortage of which minerals:
1. Zinc
2. Lead
3. Salt Petre
4. Rock phosphate
Which of the above option are correct?
1
2 only
2
1 and 2 only
3
2 and 3 only
4
all of the above
In India, the battery production industry faces a shortage of which minerals:
1. Zinc
2. Lead
3. Salt Petre
4. Rock phosphate
Which of the above option are correct?