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Petroleum gas is gas which is collected with crude oil from oil wells. gas is already being saved by us. because earlier this gas was burnt when it came out of oil wells. but now the LPG and CNG we use are petroleum gases. but if you want more then.
*don't use gas powered vehicles when you have to go to short distance.
*whenever you cook good always put a lid on the utensil in which you are cooking.
many other methods you can also use.
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