C Chandani 🎓 Tutor II ⭐ 10.97K Points Q. Petrbleum is referred to as ‘black gold’ because (A) it is black in colour (B) it is yellow in colour (C) it is valuable (D) it is used in making jewellery 👁️ Show Answer 💬 Discuss 🔗 Share ✅ Correct Answer: (C) it is valuable