Simplified guide of MCQs for Exams, Interviews

Sub Topic: Everyday Science

1 .  The most abundant element in human body is __________?

  • A. Hydrogen
  • B. Blood
  • C. Oxygen
  • D. Protein

Correct Answer:

Oxygen


2 .  In human the Y chromosome is passed to next generation from?

  • A. Mother to son
  • B. Father to son
  • C. Father to daughter
  • D. Mother to daughter

Correct Answer:

Father to son


3 .  The process which is essential for continuing and survival of species is __________?

  • A. Digestion
  • B. Respiration
  • C. Reproduction
  • D. Excretion

Correct Answer:

Reproduction


4 .  The chemical name of bauxite _______ ?

  • A. Aluminium Oxide
  • B. Aluminium Chloride
  • C. Aluminium Sulphite
  • D. None of the above

Correct Answer:

Aluminium Oxide


5 .  Dinosaurs and many other species were extinct about ________ years ago.

  • A. 55 million
  • B. 66 million
  • C. 75 million
  • D. 85 million

Correct Answer:

66 million


6 .  Animals use nitrogen in the form of_________?

  • A. Nitrogen
  • B. Nitrates
  • C. Nitrites

Correct Answer:

Nitrites


7 .  Which is the purest form of water?

  • A. Rain water
  • B. Heavy water
  • C. Tap water

Correct Answer:

Rain water


8 .  Chronometer is invented by________?

  • A. Robert Fulton
  • B. Nikola Tesla
  • C. Martin Cooper
  • D. John Harrison

Correct Answer:

John Harrison


9 .  Wisdom teeth normally grow between the age of___________?

  • A. 34-40
  • B. 17-30
  • C. 45-55

Correct Answer:

17-30


10 .  Air contains volume of carbon dioxide approximately?

  • A. 0.03%
  • B. 0.3%
  • C. 3%
  • D. 33%

Correct Answer:

0.03%