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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
Show/Hide Answers
Electric Circuits and Currents
The discovery which was made by Hans Oersted was used by an
British scientist
French scientist
English scientist
Chinese scientist
Author:
rikazzz
Comment
Dispersion of Light
The refractive index of soda-lime glass is
0.5
1
1.5
2
Author:
rikazzz
Comment
Electric Circuits and Currents
In series circuit electrons in the current when comes to second bulb after passing through the first, have
more energy
less energy
more power
less power
Author:
rikazzz
Comment
Importance of Water
In country area, untreated sewage is pumped into tanks known as
septic tanks
sewage tanks
grit tanks
sludge tanks
Author:
rikazzz
Comment
Reproduction in Plants
Most of the plants reproduce through
buds
crafting
seeds
sperm
Author:
rikazzz
Comment
Energy Resources
Thousands of mirrors or curved metals are used to focus solar energy to make it very hot, in
solar cells
solar heater
solar furnace
solar battery
Author:
rikazzz
Comment
Physical and Chemical Changes
The least kinetic energy is found in
solids only
liquids only
gases only
metals only
Author:
rikazzz
Comment
Dispersion of Light
The refractive index of water is
0.33
0.5
1.5
1.33
Author:
rikazzz
Comment
Atoms and Atom Model
The ionic chemical formula of magnesium is
Mg
-2
Mg
+2
Mg
–
Mg
+
Author:
rikazzz
Comment
Feeding Relationships and Environment
The body of a fish is
flat
streamlined
curved
bi-muscular
Author:
rikazzz
Comment
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