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Q1. The primary function of red blood cells is to:
✅ Answer: Transport oxygen
Q2. Which of the following is a renewable resource?
✅ Answer: Solar energy
Q3. Coca alkaloids increase alertness by stimulating the:
✅ Answer: Brain and nervous system
Q4. Which planet in our solar system is known as the “Red Planet”?
✅ Answer: Mars
Q5. What is the chemical symbol for water?
✅ Answer: H2O
Q6. In a simple series electrical circuit, if one light bulb burns out, what happens to the others?
✅ Answer: They turn off
Q7. Which force is responsible for holding the planets in orbit around the Sun?
✅ Answer: Gravity
Q8. The process by which plants convert light energy into chemical energy is called:
✅ Answer: Photosynthesis
Q9. Which of these is not a state of matter?
✅ Answer: Heat
Q10. The largest organ in the human body is the:
✅ Answer: Skin