Who can tell me the advantage and disadvantage of oil

Oil is any of a group of liquid edible fats that are obtained from plants or animals.In our life,oil is called ebible oil.When it comes to this,some people thinks it is good for health,there is a public debate today that most of chinese enjoy oil.In that way,person who often consumes oil proves that fats--proved by expert of physical health--oil can reduces the probability of suffering from heart diseases,suppresses the cardiovascular diseases,helps to the function of digest and assimilate and helps to prevent the skin disease,etc.
Now there is a growing awareness that the edible oil is very apt to be rotten,because oil will will be oxidized automatically that will produce a lot of poisonous oxidizing and resolving materials.
If people eat the oil of the degradation for a long time,will make cell's function depleted ,will bring out many kinds of diseases.But that is only part of the history,another equally important aspect is the more serious one ,which is the poisonous chemical compound that the greasy dirt includes is not to only lead to the fact that the marine organisms die in a large amount,there are living beings not dying ,including planktonic organism ,benthon ,etc.,will accumulate the suitable toxic chemical compound because of greasy dirt,and transmit to fish and shellfish and high-order consumer including mankind via the food net and the food chain .The advantages for oil for outweigh the disadvantages of it,
so we don't need to refuse it,but to improve the quality of it.From what has been discussed above,it is wiser to ...

oil 有这样几种application:
Applications
OilcanCooking oil
Edible vegetable and animal oils are frequently used in cooking, due to their ability to reach higher temperatures than water. They a...

oil can give us fuel which can give us fire to warm ourselves, but oil can also do us harmful things that fire can burn something of us