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General Science
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Biological Sciences
50
Modern Materials
21
Atomic Structure
87
Energy Resources
43
Elements and Substances
76
Plant Photosynthesis and Respiration
52
Space and Solar System
230
General Science for Class 6
1155
General Science for Class 7
2197
General Science for Class 8
0
Basics of Electricity
28
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Sound Waves
To avoid noise from the surroundings
soft curtains should be used
hard curtains should be used
glass windows should be used
vacuum windows should be used
Author:
rikazzz
Comment
Energy Resources
Trapped heat inside the earth is known as
thermal energy
geothermal energy
heat energy
volcano
Author:
rikazzz
Comment
Atoms and Atom Model
The ion with a negative charge, is known as
cation
anion
positron
negatron
Author:
rikazzz
Comment
Electric Circuits and Currents
If a live wire comes in contact with the metal casing, the excess current will move to
power house
casing
dynamo
transformer
Author:
rikazzz
Comment
Heat Transfer
An example of bad conductor of heat is
aluminum
copper
gold
plastic
Author:
rikazzz
Comment
Electric Circuits and Currents
If a hair drier uses a current of 2A but we fit 1A fuse in it. The fuse will
glow
burst
melt
remain safe
Author:
rikazzz
Comment
Sound Waves
Musical instruments are so designed that they could produce
musical notes
pitch
rhythm
musical beat
Author:
rikazzz
Comment
Reproduction in Plants
Some flowers are constructed so, when insect lands on them
ovules stick at the wings of the insect
pollens stick to the wings of the insect
pollens fly by the wind formed by the movement of wings of insect
ovaries burst to spread the ovules
Author:
rikazzz
Comment
Atoms and Atom Model
Sodium becomes a cation when
it loses a proton
it gains a proton
it loses an electron
it gains an electron
Author:
rikazzz
Comment
Reproduction in Plants
Most of the seeds can stay dormant in soil for
50 months
50 days
50 years
50 decades
Author:
rikazzz
Comment
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