General Science
1. What is the SI unit of force?
A. Joule
B. Watt
C. Newton
D. Pascal
C. Newton
2. What is the chemical formula of water?
A. CO₂
B. H₂O
C. O₂
D. NaCl
B. H₂O
3. Which organ in the human body is responsible for pumping blood?
A. Brain
B. Lungs
C. Liver
D. Heart
D. Heart
4. Which gas is most abundant in the Earth’s atmosphere?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Hydrogen
C. Nitrogen
5. What is the speed of light in vacuum?
A. 3 × 10⁶ m/s
B. 3 × 10⁷ m/s
C. 3 × 10⁸ m/s
D. 3 × 10⁹ m/s
C. 3 × 10⁸ m/s