1. Which of the following is a renewable energy source?

• A. Coal
• B. Natural gas
• C. Solar power
• D. Petroleum

2. What is the primary function of red blood cells?

• A. Fighting infections
• B. Carrying oxygen
• C. Digesting food
• D. Producing hormones

3. Which planet is known as the “Red Planet”?

• A. Venus
• B. Mars
• C. Jupiter
• D. Saturn

4. What is the chemical symbol for gold?

• A. Go
• B. Gd
• C. Au
• D. Ag

5. Which gas do plants absorb during photosynthesis?

• A. Oxygen
• B. Nitrogen
• C. Carbon dioxide
• D. Hydrogen