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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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Feeding Relationships and Environment
Carnivores are always
producers
primary consumers
secondary consumers
tertiary consumers
Author:
rikazzz
Comment
Dispersion of Light
Cones are also sensitive to
secondary colors
tertiary colors
mixed colors
primary colors
Author:
rikazzz
Comment
Electric Circuits and Currents
The energy which is used to push electrons towards the positive terminal is known as
mechanical energy
kinetic energy
electrical energy
potential energy
Author:
rikazzz
Comment
Electric Circuits and Currents
Miniature circuit breaker is a small
fuse
magnetic switch
electromagnetic switch
two way switch
Author:
rikazzz
Comment
Heat Transfer
A perfectly empty ‘space’ without air is known as
vacuum
lithosphere
atmosphere
exosphere
Author:
rikazzz
Comment
Mixtures
Balloons are filled with
carbon dioxide
oxygen
helium
nitrogen
Author:
rikazzz
Comment
Simple Chemical Reactions
If two or more substances are combined to form a new substance, the chemical reaction is termed as
thermal decomposition
combination
addition
combustion
Author:
rikazzz
Comment
Reproduction in Plants
For seeds the task of fruit is to
keep them fresh
protect them
disperse them only
protect and disperse them
Author:
rikazzz
Comment
Energy Resources
Toxic air pollutants like sulphur dioxide and nitrogen oxides are produced by burning
coal
oil
gases
both a and b
Author:
rikazzz
Comment
Sound Waves
Sound travels faster in liquids than air because
liquid is more dense
the particles in liquid are close
the particles in liquids have less energy
the particles in liquids collide less as compare to particles in air
Author:
rikazzz
Comment
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