1. Which metal is liquid at room temperature? 2. What is the SI unit of electric current? (Q91) 3. Which planet is known as the Red Planet? (Q72) 4. What is the SI unit of force? 5. Which gas do plants absorb in photosynthesis? (Q15) 6. Which planet is known as the Red Planet? (Q32) 7. Which gas is most abundant in Earth's atmosphere? 8. Which gas do plants absorb in photosynthesis? (Q100) 9. Which gas do plants absorb in photosynthesis? (Q10) 10. Which blood cells carry oxygen? (Q88)