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JMI 6th Entrance Paper 2019 answer key and explanation

16. If a child is ill, you would need to consult a

  • (A) Optician
  • (B) Nephrologist
  • (C) Botanist
  • (D) Pediatrician

Answer:

(D) Pediatrician

Explanation:

A pediatrician is a medical doctor who specializes in the care of children.


17. Who discovered Penicillin?

  • (A) Einstein
  • (B) Isaac Newton
  • (C) Galileo
  • (D) Alexander Fleming

Answer:

(D) Alexander Fleming

Explanation:

Alexander Fleming was the scientist who discovered the antibiotic penicillin.


18. How much % of oxygen is there in the air?

  • (A) 78%
  • (B) 21%
  • (C) 1%
  • (D) 12%

Answer:

(B) 21%

Explanation:

The Earth’s atmosphere is composed of approximately 21% oxygen.


19. If you cool a gas, it may ______ into a liquid:

  • (A) condense
  • (B) evaporate
  • (C) freeze
  • (D) melt

Answer:

(A) condense

Explanation:

Condensation is the process where a gas changes into a liquid upon cooling.


20. The part of an atom with a negative electrical charge is the:

  • (A) Electron
  • (B) Proton
  • (C) Neutron
  • (D) Atomic nucleus

Answer:

(A) Electron

Explanation:

Electrons are the subatomic particles that carry a negative charge.


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