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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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Investigating Space
The dishes of a separate aerial telescope are arranged in the shape of a letter i.e.
A
X
Y
Z
Author:
rikazzz
Comment
Physical and Chemical Changes
To separate the molecules of ethene dichloride, the compound is
heated lightly
heated gently
heated strongly
heated for a long time
Author:
rikazzz
Comment
Physical and Chemical Changes
When the state of matter is changed from solid to liquid, we call it
melting
freezing
boiling
condensing
Author:
rikazzz
Comment
Investigating Space
All large telescopes that are used around the world, are
Radio telescopes
Reflecting telescopes
Refracting telescopes
Hubble telescope
Author:
rikazzz
Comment
Atoms and Atom Model
Electrons are mainly
solids
bundle of light
bundle of energy
gases
Author:
rikazzz
Comment
Feeding Relationships and Environment
Two correct examples of a habitat are
streams and caves
Ponds and deserts
Water and air
Grass and den
Author:
rikazzz
Comment
Investigating Space
Blue and white stars are
cold
normal
hot
none of above
Author:
rikazzz
Comment
Energy Resources
Solar cells and solar furnaces are
cheap
expensive
free
reasonable
Author:
rikazzz
Comment
Atoms and Atom Model
The mass number of ‘helium’ is
2
4
6
8
Author:
rikazzz
Comment
Atoms and Atom Model
Oxygen is a diatomic gas so its chemical formula is
O
2
O
2
O
Ox
Author:
rikazzz
Comment
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