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: Blood cells responsible for oxygen transport
A) Red cells
B) Platelets
C) White cells
D) Plasma
✅ Correct Answer: A
Explanation: Red blood cells carry oxygen from the lungs to the body tissues.
Q: Standard unit of electric current
A) Watt
B) Ohm
C) Ampere
D) Volt
✅ Correct Answer: C
Explanation: Ampere is the SI unit used to measure electric current.
Q: Energy stored in food is called
A) Mechanical energy
B) Chemical energy
C) Heat energy
D) Electrical energy
✅ Correct Answer: B
Explanation: Chemical energy is stored in food and released during metabolism.
Q: Main source of energy for Earth
A) Coal
B) Moon
C) Wind
D) Sun
✅ Correct Answer: D
Explanation: Sun provides solar energy, the primary source for life and weather systems.
Q: Organ responsible for filtering blood
A) Intestine
B) Kidney
C) Lungs
D) Liver
✅ Correct Answer: B
Explanation: Kidneys remove waste and excess fluids through urine formation.