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[Old] Social science MCQ

What is Around Us? · Gujarat Board (GSEB) STD 8 (GSEB - English Medium). 16 questions.

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16 questions · timed · auto-graded

MCQ 21 Mark
Which gas increases in volume in areas of heavy vehicular traffic ?
  • ✓
    Carbon monoxide
  • B
    Nitrogen
  • C
    Hydrogen
  • D
    Argon
Answer
Correct option: A.
Carbon monoxide
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MCQ 31 Mark
Which components of atmosphere spreads sunrays in all directions ?
  • A
    Oxygen
  • B
    Ozone
  • C
    Carbon dioxide
  • ✓
    Dust particles
Answer
Correct option: D.
Dust particles
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MCQ 41 Mark
Which atmosphere gas reduces the intensity of oxygen ?
  • A
    Ozone
  • B
    Carbon dioxide
  • ✓
    Nitrogen
  • D
    Hydrogen
Answer
Correct option: C.
Nitrogen
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MCQ 51 Mark
Which atmosphere gas prevents ultra$-$violet rays of the Sun from reaching Earth ?
  • A
    Nitrogen
  • B
    Oxygen
  • ✓
    Ozone
  • D
    Hydrogen
Answer
Correct option: C.
Ozone
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MCQ 61 Mark
What is the proportion of oxygen in atmosphere $?$
  • ✓
    $21\%$
  • B
    $48\%$
  • C
    $78\%$
  • D
    $25\%$
Answer
Correct option: A.
$21\%$
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MCQ 71 Mark
What is the proportion of nitrogen in atmosphere $?$
  • A
    $71\%$
  • B
    $48\%$
  • ✓
    $78\%$
  • D
    $21\%$
Answer
Correct option: C.
$78\%$
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MCQ 81 Mark
$Up$ to how many kilometers above the surface does atmosphere extend $?$
  • ✓
    $1600$
  • B
    $1000$
  • C
    $1200$
  • D
    $1400$
Answer
Correct option: A.
$1600$
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MCQ 91 Mark
How much of Earth”s total water is in the oceans $?$
  • A
    $71\%$
  • B
    $78\%$
  • C
    $80\%$
  • ✓
    $97\%$
Answer
Correct option: D.
$97\%$
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MCQ 101 Mark
How deep are ocean trenches $?$
  • A
    $8$ to $9\ km$
  • ✓
    $10$ to $11\ km$
  • C
    $5$ to $6\ km$
  • D
    $14$ to $15\ km$
Answer
Correct option: B.
$10$ to $11\ km$
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MCQ 111 Mark
How much surface area does hydroshpere cover $?$
  • ✓
    $71\%$
  • B
    $97\%$
  • C
    $68\%$
  • D
    $78\%$
Answer
Correct option: A.
$71\%$
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MCQ 131 Mark
Which sphere of Earth has neither colour nor taste or smell ?
  • A
    Lithosphere
  • B
    Biosphere
  • ✓
    Atmosphere
  • D
    Hydrosphere
Answer
Correct option: C.
Atmosphere
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MCQ 141 Mark
Which sphere of Earth cannot be seen ?
  • A
    Lithosphere
  • B
    Biosphere
  • ✓
    Atmosphere
  • D
    Hydrosphere
Answer
Correct option: C.
Atmosphere
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MCQ 151 Mark
How much surface area does the Ithosphere occupy $?$
  • A
    $98\%$
  • B
    $97\%$
  • C
    $71\%$
  • ✓
    $29\%$
Answer
Correct option: D.
$29\%$
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MCQ - [Old] Social science STD 8 Questions - Vidyadip