Environment & Ecology · Environmental Studies
Select the group that consists exclusively of products or by-products obtained from petroleum refining:
- 1Diesel, Petrol, Ethanol
- 2Plastics, Paints, LPG
- 3Wax, Grease, Rayon
- 4Wax, Coal tar, Grease✓
Correct answer
Wax, Coal tar, Grease
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