Chemistry
Gunpowder consits of a mixture of

Sand and TNT
Nitre, sulphur and charcoal
TNT and charcoal
Sulphur, sand and charcoal

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Chemistry
Man dies in the atmosphere of CO, because it

Combines with O2 present in the body
Dries up the blood
Combines with the haemoglobin of blood, thereby making the later incapable of absorbing O2
Reduces the organic matter of tissues

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