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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 8

Global warming leads to a rise in the sea level causing floods in the coastal areas. One of the main reasons of global warming is

A Combustion of fuels releases sulphur dioxide which increases the temperature
B Combustion of fuels releases carbon monoxide which decreases the temperature
C Combustion of fuels releases unburnt carbon particles which causes decrease in temperature
D Combustion of fuels releases carbon dioxide which causes increase in temperature.


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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 3

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