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: Vitamin essential for blood clotting
A) Vitamin C
B) Vitamin A
C) Vitamin D
D) Vitamin K
✅ Correct Answer: D
Explanation: Vitamin K plays a vital role in synthesizing proteins needed for blood clotting.
Q: Invention associated with Alexander Fleming
A) Penicillin
B) Thermometer
C) X-ray
D) Vaccine
✅ Correct Answer: A
Explanation: Penicillin, the first true antibiotic, was discovered by Alexander Fleming.
Q: Planet known for having rings
A) Mars
B) Saturn
C) Venus
D) Earth
✅ Correct Answer: B
Explanation: Saturn is easily recognized due to its prominent ring system.
Q: Natural satellite of Earth
A) Moon
B) Mars
C) Sun
D) Venus
✅ Correct Answer: A
Explanation: Moon is Earth’s only natural satellite, reflecting sunlight at night.
Q: Organ where digestion begins
A) Small intestine
B) Liver
C) Stomach
D) Mouth
✅ Correct Answer: D
Explanation: Digestion starts in the mouth where enzymes in saliva begin breaking down food.