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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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Solutions
The solution which can hold no more solute is called
dilute solution
saturated solution
aqueous solution
concentrated solution
Author:
rikazzz
Comment
Physical and Chemical Changes
The compounds made up of hydrogen and carbon are known as
carbohydrates
hydrocarbons
alkanes
alkenes
Author:
rikazzz
Comment
Investigating Space
Contemporary, sun to the stage of red supergiant, it would take approximately
10 years
thousands of years
millions of years
zillions of years
Author:
rikazzz
Comment
Heat Transfer
In winter, closed curtains help in keeping a house warm by
preventing heat to enter
preventing light to enter
preventing greenhouse effect
trapping air
Author:
rikazzz
Comment
Reproduction in Plants
A part of plant that keeps on growing over the soil, making other small plants with penetrating roots in the soil and growing of shoots towards the light is known as
tuber
bud
runner
bulb
Author:
rikazzz
Comment
Dispersion of Light
Each material has
same values of critical angle
different values of critical angle
alternate values of critical angle
calculated values of critical angle
Author:
rikazzz
Comment
Elements and Compounds
A greenish yellow poisonous gas is
chlorine
carbon dioxide
nitrogen
helium
Author:
rikazzz
Comment
Physical and Chemical Changes
The change of shape of liquid according to the shape of container is due to
space between particles
collision of particles
movement of particles
force of attraction between particles
Author:
rikazzz
Comment
Atoms and Atom Model
Large molecules such as polythene and polystyrene contains
ionic bonding
metallic bonding
covalent bonding
dative bonding
Author:
rikazzz
Comment
Digestive System
The mechanical breakdown of food is due to
hydrochloric acid
pepsin
chewing
peristalsis
Author:
rikazzz
Comment
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