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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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Elements and Compounds
The first most abundant element found in universe is
hydrogen
oxygen
nitrogen
helium
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Energy Resources
Rubbish is buried underground to produce
methane
biogas
oxygen
carbon dioxide
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Physical and Chemical Changes
The density of liquids is
lower than solids but higher than gases
lower than solids and gases both
higher than solids and gases both
higher than solids but lower than gases
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Atoms Molecules and Ions
An electrically charged particle which is formed when an atom gains or loses electron is called
ion
charge
formula
neutron
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Energy Resources
The products which are helpful in harnessing solar energy, are
solar furnaces
solar heaters
solar cells
all of above
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Human Transport System
A pigment in red blood cells which makes the color of blood “Red” is known as
plasma
hemoglobin
fibrin
fibrinogen
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Human Transport System
‘Anemia’ is caused due to lack of
proteins in the blood
carbohydrates in the blood
iron in the blood
fats in the blood
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Feeding Relationships and Environment
Animals that depend on producers are known as
producers
primary consumers
secondary consumers
tertiary consumers
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Dispersion of Light
Televisions and monitors use the effect of
primary colors
secondary colors
tertiary colors
special color
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Electric Circuits and Currents
To overcome the resistance
power has to be used
force has to be used
more current has to be used
energy has to be used
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