Science · Chemistry
डोलोमाइट किसका अयस्क है?
- 1केवल मैग्नेशियम का
- 2केवल कैल्सियम का
- 3दोनों मैग्नेशियम और कैल्सियम का✓
- 4ताँबा का
सही उत्तर देखें
दोनों मैग्नेशियम और कैल्सियम का
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