National Science Olympiad Forum By SOF Olympiad Trainer - Page 173

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7

Ans 2:

Class : Class 7
i though it was acid rain but its global warming

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Class : Class 8
A ozone layer depletion

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Class : Class 8
Acid Rain

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 1

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