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12.petrol
13.4 zones
14.outer zone
15.(a) black
(b)yellow
(c)blue
16.carbon particles
17. Carbon monoxide
18.CNG
19.potassium and white phosphorus are having low ignition temperature
coal and petrol are having hight ignition temperature
rupsona04pegvj7:
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HEYA! ! ANSWER - : ✔ ✔ IN THE ATTACHMENT ...
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