Category: CSS General Science MCQs

Founder of modern astronomy was:

(A) Archimedes
(B) William Gilbert
(C) Nicolas Copernicus
(D) Michel Faraday

Answer: (C) Nicolas Copernicus

Q. Who is the “Father of Observation Astronomy”, the “Father of Modern Physics”, the “Father of the Scientific Method” and the “Father of Modern Science”?
(A) Galileo Galilei
(B) William Gilbert
(C) Nicolas Copernicus
(D) Michel Faraday

Answer: (A) Galileo Galilei

Q. When did Nicolas Copernicus died?
(A) 24 May, 1443
(B) 24 May, 1543
(C) 24 May, 1643
(D) 24 May, 1743

Answer: (B) 24 May, 1543

Which form of drug abuse involves most risk of infection with the HIV (AIDS) virus:

(A) Cigarette smoking
(B) Using alcohol
(C) Injection of heroine
(D) Taking too much aspirin

Answer: (C) Injection of heroine

Q. HIV (virus) stands for?
(A) Human Infection Viruses
(B) Human Immunodeficiency Viruses
(C) High Infection Viruses
(D) None of these

Answer: (B) Human Immunodeficiency Viruses

Q. A small living organism that replicates only inside the living cells of an organism is known as:
(A) Virus
(B) Bacteria
(C) Archaea
(D) None of these

Answer: (A) Virus

Role of biotechnology in the production of food is based on:

(A) Decomposition
(B) Respiration
(C) Digestion
(D) Fermentation

Answer: (D) Fermentation

Q. A metabolic process that produces chemical changes in organic substrates through the actions of enzymes is known as:
(A) Fermentation
(B) Decomposition
(C) Digestion
(D) None of these

Answer: (A) Fermentation

Q. The process in which green plants and some other organisms transform light energy in to chemical energy is known as:
(A) Metabolism
(B) Photosynthesis
(C) Glycolysis
(D) None of these

Answer: (B) Photosynthesis

Laughing gas has chemical composition of following two elements:

(A) Nitrogen + Hydrogen
(B) Nitrogen + Carbon
(C) Nitrogen + Oxygen
(D) Oxygen + Carbon

Answer: (C) Nitrogen + Oxygen

Q. What is the chemical name of laughing gas?
(A) Carbon dioxide
(B) Nitrous oxide
(C) Nitric oxide
(D) None of these

Answer: (B) Nitrous oxide

Q. What is the chemical formula of laughing gas?
(A) N3O
(B) NO2
(C) N2O3
(D) N2O

Answer: (D) N2O

Sensitive layer of the eye is:

(A) Choroids
(B) Sclerotic
(C) Retina
(D) Cornea

Answer: (C) Retina

Q. A thin circular structure in the eye, responsible for controlling the diameter and size of the pupil and define the color of an eye is:
(A) Retina
(B) Iris
(C) Cornea
(D) None of these

Answer: (B) Iris

Q. The opaque, fibrous, protective outer layer of an eye is known as:
(A) Retina
(B) Iris
(C) Cornea
(D) Sclera

Answer: (D) Sclera