you get cancer faster the older the oil is. which means you die faster and stop using fossil fuels, and that's how used cooking oil is better for the environment.
Yes, cooking oil is made out of oil.
cooking oil
Jews use oil in cooking for the same reasons that anyone uses oil in cooking.
the countries that have deposits of coal and oil have the advantage to have coal to heat up homes, give a warming fire etc, and for countries that have oil deposits can have more petrol, cooking oil :), oil for lamps etc.
The main advantage is to re-use (re-cycle) the cooking oil again, which saves having to buy new cooking oil. Though, eventually, new cooking oil will be needed to replace or top-up old cooking oil lost to evaporation, or cooking oil tainted with a strong smell, possibly from cooking a lot of smelly fish.
Mineral oil should NEVER be used for cooking. It is a petroleum byproduct, not a food-based cooking oil.
One advantage is that it enhances, enrichens the flavour, but on the negative side, too much of it can clog up your arteries.
Because margarine is a fat as is the cooking oil.
They used butter and vegetable oil for cooking.
Wesson cooking oil was created in 1899.
PAM - cooking oil - was created in 1961.