1. Which planet is known as the Red Planet? (Q47) 2. Which blood cells carry oxygen? (Q88) 3. Which gas do plants absorb in photosynthesis? (Q60) 4. Which metal is liquid at room temperature? 5. Which gas is most abundant in Earth's atmosphere? 6. Which gas do plants absorb in photosynthesis? (Q100) 7. Which metal is liquid at room temperature? (Q14) 8. Which planet is known as the Red Planet? (Q62) 9. Which blood cells carry oxygen in the human body? 10. What is the SI unit of electric current? (Q46)