A) Watt
B) Coulomb
C) Ohm
D) Volt
Answer: C) Ohm
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Which blood component helps in clotting?
A) Plasma
B) Red blood cells
C) White blood cells
D) Platelets
Answer: D) Platelets
Which part of the electromagnetic spectrum has the shortest wavelength?
A) Gamma rays
B) X-rays
C) Ultraviolet rays
D) Infrared rays
Answer: A) Gamma rays
The most abundant greenhouse gas naturally present in the Earth’s atmosphere is:
A) Carbon dioxide
B) Methane
C) Nitrous oxide
D) Water vapor
Answer: D) Water vapor
Which organelle contains its own DNA and ribosomes apart from the nucleus?
A) Lysosome
B) Mitochondria
C) Golgi apparatus
D) Endoplasmic reticulum
Answer: B) Mitochondria
The half-life of Carbon-14 is about:
A) 2730 years
B) 3500 years
C) 5730 years
D) 7500 years
Answer: C) 5730 years