everyday science MCQs – Page 17

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 Review each marked answer and report any item that may be outdated or unclear.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
322. Which one is the brightest star in the night sky?
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A. Betelgeuse

B. Rigel

C. Sirius

D. Polaris

323. A canyon is a large form of ________?
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A. Gorge

B. Dry valley

C. Badiand

D. Pediment

325. AIDS virus is______________________
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A. Single-stranded RNA

B. Double-stranded RNA

C. Single-stranded DNA

D. Double-stranded DNA

327. Bore is caused by______?
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A. Unequal heating of oceans

B. Spring tide and strong winds

C. Friction from prevailing winds

D. Rising tide while meeting river currents
328. A pulsar is a rapidly spinning neutron star which emits:
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A. A gravitational pull which attracts high energy dust particles

B. A blinding light when it aligns with the planets

C. Radio waves detectable from Earth

D. Enough energy to power itself indefinitely

329. The chemical name of Laughing gas is___________?
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A. Nitric oxide

B. Nitrogen dioxide

C. Nitrous oxide

D. Nitrogen pentoxide

330. which one is the most common disease?
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A. Headache

B. Migraine

C. Dental

D. Leprosy

331. The sky appears blue because the earths atmosphere __________?
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A. Has actual blue cover

B. Reflects blue light

C. Scatters blue light

D. Transmits blue light

332. Fuse wire is made of_____________?
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A. 63% lead and 37% tin

B. 63% tin and 37% aluminum

C. 63% tin and 37% lead

D. 63% lead and 37% aluminum

333. Gulf streams are caused by__________.
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A. Difference in water level

B. Cyclones

C. Temperature

D. Ocean Pressure
334. Magnalium is an alloy of_____________?
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A. Aluminium and Zinc

B. Aluminium and Mercury

C. Magnesium and Lead

D. Aluminium and Magnesium
335. Which of the following has the largest wavelength?
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A. x-rays

B. ultraviolet radiation

C. visible light

D. infrared light
337. Oranges are rich source of____________?
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A. Carbohydrates

B. Vitamins

C. Proteins

D. Fats

338. Hydrogen peroxide (H2O2)______________?
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A. helps line up cell proteins

B. is poisonous to tissues

C. aids in oxidation of glucose

D. is often needed as a catalyst

340. The number of electrons of a neutral atom is automatically known if one knows the?
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A. none

B. Atomic number

C. Number of orbitals

D. Atomic weight