Question

Vegetable oil has been known from antiquity. No household can get on without it,

for it is used in cooking. Perfumes may be made from the oils of certain flowers.

Soaps are made from vegetable and animal oils.

To the ordinary man, one kind of oil may be as important as another. But

when the politician or the engineer refers to oil, he almost always means mineral

oil, the oil that drives tanks, aeroplanes and warships, motor cars and diesel

locomotives ; the oil that is used to lubricate all kinds of machinery. This is the oil

that has changed the life of the common man. When it is refined into petrol it is

used to drive the internal combustion engine. To it we owe the existence of the

motor car, which has replaced the private 10 carriage drawn by the horse. To it we

owe the possibility of flying. It has changed the methods of warfare on land and

sea. This kind of oil comes out of the earth. Because it burns well, it is used as

fuel and in some ways it is superior to coal in this respect. Many big ships now

burn oil instead of coal. Because it burns brightly, it is used for illumination ;

countless homes are still illuminated with oil burning lamps. Because it is very

slippery, it is used for lubrication. Two metal surfaces rubbing together cause

friction and heat. But if they are separated by a thin film of oil, the friction and heat

are reduced. No machine would work for long ifit were not properly lubricated. The

oil used for this purpose must be of the correct thickness ; if it is too thin it will

not give sufficient lubrication, and if it is too thick it will not reach all parts that

must be lubricated.

The existence of oil wells has been known for a long time, Some of the

Indians of North America used to collect and sell the oil from the wells of

Pennsylvania. No one, however, seems to have realised the importance of this oil

until it was found that paraffin oil could be made from it. This led to the

development of the wells and to the making of enormous profits. When the

internal combustion engine was invented, oil became of 5 worldwide importance.

1. Which is the most talked about oil in the world?

2. Where does the mineral oil come from?

3. Which is the oldest known oil?

4. Where do we get petrol from?

5. How has our life style changed?

6. How does mineral oil help our machines?

7. Which word in the passage means 'a thin layer​

Answer 1

Answer:

1 . Mineral oil

2 . Mineral oil is come from crude oil

3 . A team of Australian scientists has discovered the world's oldest oil in 3 billion-year-old rocks from Australia, South Africa and Canada.

4 . Today, petroleum is found in vast underground reservoirs where ancient seas were located. Petroleum reservoirs can be found beneath land or the ocean floor

Explanation:

5 . In almost everything we do, we use the Internet. Ordering a pizza, buying a television. But befor we need say something we talk we were not having phones that time

6 . Mineral oils have low flash points, low viscosity indexes and high boundary friction coefficients compared with natural oils.

7 . were is the page . I can not get

hope this helps you ✌