Science MCQs
Science MCQs cover physics, chemistry, and biology basics, ideal for SSC, HSSC, and job exams. They enhance understanding of scientific concepts, laws, anatomy, and problem-solving skills essential for competitive and academic success.
Q: Direction sound travels fastest
A) Gas
B) Solid
C) Vacuum
D) Liquid
✅ Correct Answer: B
Explanation: Sound moves fastest in solids due to tightly packed particles.
Q: Scientist who proposed the law of gravity
A) Einstein
B) Newton
C) Darwin
D) Galileo
✅ Correct Answer: B
Explanation: Isaac Newton formulated the law of universal gravitation.
Q: Human sense directly affected by olfactory nerves
A) Hearing
B) Vision
C) Smell
D) Touch
✅ Correct Answer: C
Explanation: The olfactory nerves detect and transmit smell signals to the brain.
Q: Process by which plants lose water vapor
A) Germination
B) Respiration
C) Photosynthesis
D) Transpiration
✅ Correct Answer: D
Explanation: Transpiration is the loss of water vapor from plant leaves through stomata.
Q: Planet nearest to the Sun
A) Mercury
B) Venus
C) Earth
D) Mars
✅ Correct Answer: A
Explanation: Mercury is the closest planet to the Sun in our solar system.