R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 General Awareness Q. Which metal pollute the air of a big city? (A) Cadmium (B) Chromium (C) Lead (D) Copper 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (C) Lead You must be Logged in to update hint/solution 💬 Discussion 💬 Comment