CBSE Class 8 Science Quiz | CBSE Class 8 Science Objective Type Questions with Answers

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Questions
121 The percentage of nitrogen is
A 21%
B 78%
C 12%
D 87%

Answer: 78%
122 Green House gas is
A Nitrogen
B Oxygen
C Methane
D Carbon dioxide

Answer: Carbon dioxide
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123 Air pollution causes
A Global warming
B Respiratory problems
C Soil erosion
D None of these

Answer: Respiratory problems
124 Most polluted river in the world is
A Yamuna
B Cavery
C Chenab
D Ganga

Answer: Ganga
125 The Taj Mahal is being affected by
A Noise pollution
B Air pollution
C Water pollution
D None of these

Answer: Air pollution
126 Highest percentage of air consists of
A Oxygen
B Carbon dioxide
C Nitrogen
D Argon

Answer: Nitrogen
127 Leaves or fruits fall on the ground due to
A magnetic force
B gravitational force
C electrostatic force
D muscular force

Answer: gravitational force
128 The force between two charged bodies is called
A muscular force
B gravitational force
C magnetic force
D electrostatic force

Answer: electrostatic force
129 The strength of force is expressed by?
A weight
B mass
C magnitude
D longitudinal force

Answer: magnitude
130 What is force?
A pull
B push
C push and push both
D none of these

Answer: push and push both

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