Basic Science Practice Question and Answer

Q:

Transboundary pollution (or) Acid rain is caused by–

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  • 1
    Hydrocarbon
    Correct
    Wrong
  • 2
    Carbon monoxide
    Correct
    Wrong
  • 3
    Carbon dioxide
    Correct
    Wrong
  • 4
    Nitrogen oxide and sulphur dioxide
    Correct
    Wrong
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Answer : 4. "Nitrogen oxide and sulphur dioxide"

Q:

In a refrigerator; cooling is produced by–

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  • 1
    the ice which deposits in the freezer
    Correct
    Wrong
  • 2
    the evaporation of a volatile liquid
    Correct
    Wrong
  • 3
    the sudden expansion of a compressed gas
    Correct
    Wrong
  • 4
    None of these
    Correct
    Wrong
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Answer : 2. "the evaporation of a volatile liquid"

Q:

S. What is the unit of force in I.

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  • 1
    Joule
    Correct
    Wrong
  • 2
    Newton
    Correct
    Wrong
  • 3
    Watt
    Correct
    Wrong
  • 4
    Cubic centimeters
    Correct
    Wrong
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Answer : 2. "Newton"

Q:

Image are formed between two parallel mirrors?

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  • 1
    2
    Correct
    Wrong
  • 2
    4
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    Eternal
    Correct
    Wrong
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Answer : 4. "Eternal"

Q:

The approximate percentages of oxygen, nitrogen, and carbon dioxide in pure air on the Earth's atmosphere are:

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  • 1
    0.03%, 21% and 78% respectively
    Correct
    Wrong
  • 2
    78%, 21% and 0.03% respectively
    Correct
    Wrong
  • 3
    21%, 78% and 0.03% respectively
    Correct
    Wrong
  • 4
    21%, 7.8% and 0.03% respectively
    Correct
    Wrong
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Answer : 3. "21%, 78% and 0.03% respectively"

Q:

Which tissue is responsible for transport of materials away from the root?

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  • 1
    Ground tissue
    Correct
    Wrong
  • 2
    Cambium
    Correct
    Wrong
  • 3
    Phloem
    Correct
    Wrong
  • 4
    Xylem
    Correct
    Wrong
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Answer : 4. "Xylem "

Q:

Hydraulic break and hydraulic lift work on which theorem-

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  • 1
    Conservation law of momentum
    Correct
    Wrong
  • 2
    Pascal law
    Correct
    Wrong
  • 3
    Barnaul's Theorem
    Correct
    Wrong
  • 4
    Law of inertia
    Correct
    Wrong
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Answer : 2. "Pascal law "

Q:

Photosynthesis in plants converts light energy to____ energy.

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  • 1
    Chemical
    Correct
    Wrong
  • 2
    Thermal
    Correct
    Wrong
  • 3
    Kinetic
    Correct
    Wrong
  • 4
    Physical
    Correct
    Wrong
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Answer : 1. "Chemical "

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