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: Energy source used by green plants
A) Oxygen
B) Soil
C) Water
D) Sunlight
✅ Correct Answer: D
Explanation: Sunlight is used by plants to perform photosynthesis and produce food.
Q: Organ responsible for oxygen exchange in humans
A) Liver
B) Heart
C) Kidney
D) Lungs
✅ Correct Answer: D
Explanation: Lungs facilitate the exchange of oxygen and carbon dioxide during breathing.
Q: Color resulting from combination of all visible light
A) White
B) Blue
C) Yellow
D) Red
✅ Correct Answer: A
Explanation: White light is formed by the combination of all colors in the visible spectrum.
Q: Phase of matter with highest energy
A) Gas
B) Solid
C) Liquid
D) Plasma
✅ Correct Answer: D
Explanation: Plasma has the highest energy level among all states of matter.
Q: Gland producing insulin in the body
A) Kidney
B) Pancreas
C) Liver
D) Thyroid
✅ Correct Answer: B
Explanation: The pancreas regulates blood sugar by producing insulin.