everyday science MCQs – Page 72

Practise multiple-choice questions from everyday science for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

everyday science Mcqs
1421. Which one of the following wavelengths of light is most effective in photosynthesis?
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A. Yellow

B. Orange

C. Blue

D. Green

1422. The first and largest asteroid discovered was__________?
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A. Pallas

B. Juno

C. Ceres

D. Trojan

1423. 1 Coulomb = ___________ e.
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A. 610<sup>-19</sup>

B. 6.2510<sup>-18</sup>

C. 6.251018

D. 1.610<sup>19</sup>

1424. Main Control System of our body is _____?
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A. Heart

B. Brain

C. Lungs

D. Nervous System
1425. What does Angstrom measure?
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A. None of these

B. Length

C. Quantity

D. Speed

1426. Unit of force in (SI) is __________?
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A. Newton

B. Meter

C. None of these

D. Kilogram

1427. Highly intelligent Mammals are_________?
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A. rat

B. bat

C. dolphin

D. Elephant

1428. Corona disease is a ________ disease?
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A. Infectious diseases

B. Physiological diseases

C. Deficiency disease

D. Hereditary disease

1429. What is the wavelength of visible spectrum:
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A. None of these

B. 7800-8000A

C. 1300-3000A

D. 3900-7600A
1430. Which of the following disease affects the skin ?
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A. Anemia

B. Pellagra

C. Osteoporosis

D. Rickets

1431. The _____ is the largest natural source of light?
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A. Star

B. None of these

C. Moon

D. Sun
1432. The difference in the duration of day and night increases as one moves from:_________?
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A. Equator to poles

B. West to East

C. None of these

D. East and west of the prime meridian

1433. Water has high density and minimum volume at__________?
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A. 100C

B. 0C

C. None of these

D. 4C
1434. Which is the biggest star in the Universe?
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A. Arcturus

B. Rigel

C. Canopus

D. UY Scuti
1435. Pluviometer measures ___________?
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A. None of these

B. Strength of Plywood

C. Rainfall

D. Wind

1436. The over-cooking of food should be avoided because____________?
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A. None

B. Reduce the nutrition value of food

C. Make the food difficult to digest

D. Make food Poison

1437. Who discovered that the earth was not the center of the universe?
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A. Aristotle

B. None

C. Sir Isac Newton

D. Nicolaus Copernicus
1438. Electrostatic precipitator is used to control?
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A. Water pollution

B. Noise pollution

C. Air pollution

D. Solid waste

1439. How many pounds in a kg?
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A. 2.4

B. 2.5

C. 2.20

D. 2.3

1440. The principal constituent of the atmosphere of the Earth is?
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A. Hydrogen

B. Oxygen

C. Nitrogen

D. Carbon