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Everyday Science 2137 MCQs [All-Courses]

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Prepare effectively with our Everyday Science MCQs designed for PPSC, FPSC, NTS, OTS, PTS, AJKPSC, BPSC, KPPSC, PMS, CSS, and all competitive exams.
Our content covers Physics, Chemistry, Biology, Environment, Human Body, Inventions, Scientific Laws, and daily-life science concepts.
Strengthen your scientific understanding, improve MCQS accuracy, and boost your exam performance with well-structured and updated topics.

All Topics  2137

Fatal degenerative lung disease caused by particulate asbestos is referred to as _____________?

A asbestosis
B asthma
C allergy
D sinusitis
Correct Answer: asbestosis

The blueness of the sky is mainly due to _____________?

A The scattering of sunlight by air molecules
B The presence of water vapor
C Absorption of blue light by the air
D Emission of blue light by the atmosphere
Correct Answer: The scattering of sunlight by air molecules

The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?

A Conduction of heat upward from a hot surface
B Convection from a hot surface
C Absorption of infrared energy that has been radiated from the surface
D Heat energy from the earth’s interior
Correct Answer: Heat energy from the earth’s interior

The gradual physiological adjustment to slowly changing new environmental conditions is known as _____________________?

A Selection
B Introduction
C Acclimatization
D Quarantine
Correct Answer: Acclimatization

Salinization is ___________?

A Accumulation of salts in water
B Accumulation of salts in soil
C Accumulation of salts in body
D Accumulation of salts in animals
Correct Answer: Accumulation of salts in soil

Acid deposition causes ______________________?

A the greenhouse effect to lessen
B lakes and forests to die
C acid indigestion in humans
D all the above are correct
Correct Answer: lakes and forests to die

Water vapor is ______________?

A A gas
B A cloud droplet
C A rain drop
D A snowflake
Correct Answer: A gas

At what time of day is the relative humidity normally at a minimum ________________ ?

A When the air temperature is highest
B Just before sunrise
C About midnight
D When the air temperature is lowest
Correct Answer: When the air temperature is highest

The atmospheric greenhouse effect is produced mainly by the __________________?

A Absorption and re-emission of visible light by the atmosphere
B Absorption and re-emission of ultraviolet radiation by the atmosphere
C Absorption and re-emission of infrared radiation by the atmosphere
D Absorption and re-emission of visible light by clouds
Correct Answer: Absorption and re-emission of infrared radiation by the atmosphere

Which of the following chemicals is not found in tobacco smoke?

A Chlorine bleach
B Rocket fuel
C Nail polish remover
D Barbecue lighter fluid
Correct Answer: Nail polish remover
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