(A) Smaller number of Red Blood Cells
(B) Larger number of Red Blood Cells
(C) Smaller number of White Blood Cells
(D) Larger number of White Blood Cells
Answer: (B) Larger number of Red Blood Cells
Tag: css exam 2025 mcqs
The blue colour of the clear sky is due to:
(A) Reflection of light
(B) Refraction of light
(C) Diffraction of light
(D) Dispersion of light
Answer: (D) Dispersion of light
A device that converts mechanical energy into electrical energy is called:
(A) Motor
(B) Transformer
(C) Coil
(D) Generator
Answer: (D) Generator
Which of the following is the most stable element?
(A) Uranium
(B) Hydrogen
(C) Oxygen
(D) Lead
Answer: (D) Lead
Deficiency of Vitamin C causes Sailor’s Disease (Scurvy) in humans.
(A) Vitamin A
(B) Vitamin K
(C) Vitamin C
(D) Vitamin D
Answer: (C) Vitamin C
The largest artery in the human body is:
(A) Subclavian artery
(B) Aorta
(C) Brachial artery
(D) None of these
Answer: (B) Aorta
What is the study of bacteria called?
(A) Virology
(B) Mycology
(C) Bacteriology
(D) Parasitology
Answer: (C) Bacteriology
Which of the following is a focus area of bacteriology?
(A) Study of viruses
(B) Study of fungi
(C) Structure, genetics, and ecology of bacteria
(D) Study of parasites
Answer: (C) Structure, genetics, and ecology of bacteria
Which of the following is a neutral particle?
(A) Alpha particle
(B) Neutron
(C) Electron
(D) Proton
(E) All of these
Answer: (B) Neutron
“Blue dwarfs” and “Red giants” respectively refer to:
(A) Moons of Jupiter
(B) Young star and Old star
(C) Old star and Young star
(D) None of these
Answer: (B) Young star and Old star