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Question 2008

What is common in AIDS, hepatitis and typhoid fever ?

AAll are bacterial disease

BAll are water borne diseases

CAll are viral disease

DAll are spread by human beings

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D. All are spread by human beingsExplanation: AIDS, Hepatitis, and Typhoid fever are all diseases that can be spread by human beings. While AIDS and Hepatitis are viral diseases and Typhoid is a bacterial disease, all three are transmitted through contact with infected individuals or their body fluids, making human-to-human transmission common.

Question 2007

Cause of global warming is:

AExcessive use of organic manure

BIncrease in the amount of CO2 in the atmosphere

CIncrease in the amount of atmospheric nitrogen

DExcessive use of fertilizer.

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B. Increase in the amount of CO2 in the atmosphereExplanation: The main cause of global warming is the rise in the concentration of carbon dioxide (CO₂) and other greenhouse gases in the atmosphere. These gases trap heat radiated from the Earth’s surface, creating the greenhouse effect and leading to an overall increase in the planet’s temperature.

Question 2006

The gas which destroys ozone layer is:

AOxygen

BArgon

CChloroflurocarbon

DHydrogen

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C. ChloroflurocarbonExplanation: Chlorofluorocarbons (CFCs) are the gases responsible for the depletion of the ozone layer. When released into the atmosphere, CFCs break down under ultraviolet (UV) radiation, releasing chlorine atoms that destroy ozone molecules (O₃), leading to thinning of the ozone layer and increased UV radiation reaching the Earth.

Question 2005

Marijuana, a psychoactive drug is obtained from:

Aseeds of pop

Bcapsules of poppy

Cfemale inflorescence of cannabis

Dmale inflorescence of cannabis

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C. female inflorescence of cannabisExplanation: Marijuana is a psychoactive drug obtained from the female inflorescence (flowering tops) of the Cannabis sativa plant. It contains the active compound tetrahydrocannabinol (THC), which affects the central nervous system and alters mood and perception.

Question 1995

Junk e-mail is also called:

Aspam

Bspoof

Csniffer script

Dspool

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A. spamExplanation: Unwanted or unsolicited e-mails sent in bulk are called spam. These messages often contain advertisements, phishing links, or malware. They clutter inboxes and can pose security risks. The term “spam” originated from a comedy sketch by Monty Python, where the word was repeatedly used, much like unwanted messages.

Question 1994

Which polymer is used in making non-stick kitchen ware ?

ANylon

BPVC

CBakelite

DTeflon

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D. TeflonExplanation: Teflon, also known as polytetrafluoroethylene (PTFE), is the polymer used in making non-stick kitchenware. It has a very low coefficient of friction and is resistant to heat and chemicals, which prevents food from sticking to cookware surfaces.

Question 1993

Which of the following pair is incorrect ?

ARoentgen : X-ray

BNewton : Law of Gravitation

CFaraday : Diffusion of gases

DPasteur : Bacteriology

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C. Faraday : Diffusion of gasesExplanation: The pair Faraday : Diffusion of gases is incorrect. The law of diffusion of gases was given by Thomas Graham, not Michael Faraday. Faraday is known for his work on electromagnetism and electrolysis. The other pairs are correctly matched.

Question 1992

What is Bryolory?

AStudy of food

BStudy of fruit

CStudy of mosses and liverworts

DStudy of rings

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C. Study of mosses and liverwortsExplanation: Bryology is the branch of botany that deals with the study of bryophytes, which include mosses and liverworts. These are small, non-vascular plants that typically grow in moist and shady environments.

Question 1991

Which of the following is a large blood vessel that carries blood away from the heart ?

AVein

BArtery

CCapillary

DNerve

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B. ArteryExplanation: An artery is a large blood vessel that carries blood away from the heart to various parts of the body. Arteries have thick, elastic walls to withstand high pressure. In contrast, veins carry blood toward the heart, and capillaries are tiny vessels that connect arteries and veins.

Question 1990

Which of the following is not a member of vitamin B Complex ?

AThiamine

BRiboflavin

CFolic acid

DAscorbic acid

Show answer

D. Ascorbic acidExplanation: Ascorbic acid is not a member of the vitamin B complex; it is actually vitamin C. The vitamin B complex includes vitamins like thiamine (B₁), riboflavin (B₂), niacin (B₃), folic acid (B₉), and others that play important roles in metabolism and energy production.

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Science

What is common in AIDS, hepatitis and typhoid fever ?

Cause of global warming is:

The gas which destroys ozone layer is:

Marijuana, a psychoactive drug is obtained from:

Junk e-mail is also called:

Which polymer is used in making non-stick kitchen ware ?

Which of the following pair is incorrect ?

What is Bryolory?

Which of the following is a large blood vessel that carries blood away from the heart ?

Which of the following is not a member of vitamin B Complex ?

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