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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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Electric Circuits and Currents
For current to flow, the circuit should be
parallel
in series
complete
hot
Author:
rikazzz
Comment
Human Transport System
Dead red blood cells are broken up in
stomach
pancreas
liver
kidneys
Author:
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Comment
Electric Circuits and Currents
Electricity flows through any
material
insulator
conductor
state of matter
Author:
rikazzz
Comment
Investigating Space
The maximum mass of a neutron star is
three solar masses
four solar masses
five solar masses
2.01M
Author:
rikazzz
Comment
Electric Circuits and Currents
The electrolyte used in the purification of copper is
copper nitrate
copper chloride
copper sulphate
copper carbonate
Author:
rikazzz
Comment
Atoms and Atom Model
Experiment which suggested that each chemical element is made up of different atoms, was carried out by
John Green
John Dalton
Albert Einstein
Isaac Newton
Author:
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Comment
Transportation in Plants
The cross walls of phloem vessels are known as
cross tissues
cross plates
sieve walls
sieve plates
Author:
rikazzz
Comment
Electric Circuits and Currents
The electromagnetic effect of track and train
attracts the train towards the track
pulls the train towards the track
repels the train from the track
detracks the train from the rail
Author:
rikazzz
Comment
Heat Transfer
Greenhouse gases effect on earth’s atmosphere is increased by
CFCs (chlorofluorocarbons)
air conditioners
perfumes
burning fossil fuels
Author:
rikazzz
Comment
Investigating Space
‘SOHO’ will study the
inner core of the Sun
outer layer of the Sun
mantle of the sun
crust of the sun
Author:
rikazzz
Comment
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