everyday science MCQs – Page 28

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 Review each marked answer and report any item that may be outdated or unclear.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
541. If there is no capillarity?
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A. All of above

B. The blotting paper would fail to function

C. It would be impossible to use a kerosene lamp

D. There would have been no plants on earth

542. The blueness of the sky is mainly due to _____________?
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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

543. Freezing point of water is__________?
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A. 0C

B. None of above

C. -2 C

D. -4 C

544. Which of the following chemicals is not found in tobacco smoke?
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A. Rocket fuel

B. Barbecue lighter fluid

C. Chlorine bleach

D. Nail polish remover
545. Glass is made of the mixture of______________?
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A. None of these

B. Quartz and Mica

C. Sand and Silicates

D. Sand and Salt

546. Which of the following planets has the smallest diameters_____?
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A. Marx

B. Mercury

C. Venus

D. Pluto

547. What is the name of the biggest part of human brain?
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A. Cerebrum

B. Brainstem

C. Pituitary

D. Cerebellum

548. Which of the following female mosquito is the cause of Dengue fever?
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A. Barinohils

B. N.O.A

C. Anophilies

D. Aedes Aegypteis
549. Common food sources of Vitamin A are:___________?
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A. Milk, eggs, butter, cheese, cream, and liver

B. White sugar, honey, and sugar cane

C. Broccoli, apricots, cantaloupe, carrots, sweet potato, spinach

D. Both A and C
550. Sun is moving around the centre of the galaxy at a velocity of _______ km/s?
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A. 215

B. 210

C. 205

D. 220
551. The Mirror used in the Automobiles are___________?
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A. Convex

B. Plains

C. Reflective

D. Concave

552. The melting point of ice is_________?
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A. 00C

B. 100<sup>0</sup>C

C. 4<sup>0</sup>C

D. 4<sup>0</sup>C

553. What is the effect of height increase over temperature?
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A. Temperature decrease

B. Remains constant

C. Temperature increase

D. None

554. The phases of the moon are partially the result of the____________?
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A. Variations in the moons gravitation

B. Variations in the speed of rotation of the moon

C. Changes in the shape of the moon

D. g>Revolution of the moon around the earth
555. Salinization is ___________?
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A. Accumulation of salts in body

B. Accumulation of salts in animals

C. Accumulation of salts in soil

D. Accumulation of salts in water

556. Largest Galaxy in the Universe is_________?
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A. Andromeda Galaxy

B. Milky-Way

C. Spiral Galaxy

D. Horseshoe Galaxy

557. Segmented Worms take breath through:_________?
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A. Nose

B. Mouth

C. Moist Skin

D. Head

558. How long does it take for the moon to orbit the earth once?
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A. 27.3 days

B. 26.3 days

C. 30.3 days

D. 28.3 days

559. Which Part of the Brain Regulates Body Temperature?
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A. cerebrum

B. hypothalamus

C. cerebellum

D. medulla

560. Which Planet has purple rocks according to NASA ?
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A. Neptune

B. Jupitar

C. Earth

D. Mars