Subject :NSO Class : Class 1
Subject :NSO Class : Class 6
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Subject :NSO Class : Class 5
Ans 1:
Class : Class 7
Nicolas Copernicus discovered that Sun is in the centre and all other 8 planets Mercury, Venus, Earth, Mars, Saturn, Jupiter, Uranus and Neptune revolve around the Sun
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Class : Class 8
Nicolas Copernicus discovered that the Sun is in the centre of the Solar system and that all the other planets revolved around it.
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Subject :NSO Class : Class 8
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Subject :NSO Class : Class 7
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Subject :NSO Class : Class 7
Ans 1:
Class : Class 10
Chemical properties of a substance depend on the number of protons and electrons of an atom and independent on number of neutrons because chemical reaction includes how many electrons are being shared by an atom.So the chemical reactivity also depends on number of protons and electrons.
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Subject :NSO Class : Class 6
Ans 1:
Class : Class 6
Because of the WATER CYCLE.
If you dont know what water cycle is,
search it on bing.
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 3
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Subject :NSO Class : Class 3