за задание ! ответить на следующие во Текст: Natural gas either occurs together with crude oil or forms separate deposits of gas alone. Decomposition of both animal and vegetable remains over a period of many centuries without air is the source of natural gas. A great volume of gas accumulates and penetrates into porous beds of sand, sandstones and limestones. In these beds gas can form natural deposits under great pressure. When a borehole reaches such a deposit the gas rushes up. This gas has to be collected from several boreholes with the help of pipelines over long distances. Russia has a gigantic network of pipelines. Natural gas is an inflammable gas and consists of hydrocarbons with a very low boiling point. Methane ( CH4 ) makes up approximately 85 per cent of the typical natural gas. Ethane (C2 H6 ) can be present up to 10 % and propane ( C3 H8 ) up to 3 %. Butane, pentane, hexane, octane and a few other gases may also be present. In contrast to crude petroleum natural gas has no distinct odour. Little of natural gas we may use chemically , most of it we use as a fuel for the production of both heat and energy. Like all gaseous fuels natural gas gives a great amount of heat. Natural gas is valuable also as an important chemical raw material for industry, as chemical technologists are able to obtain hydrogen, acetylene, carbon black and various chlorine derivatives. Natural gas occurs mainly in Russia and some other CIS countries and in the United States where most of the extraction and utilization takes place. Before the war we utilized gas only at Baku and in the Carpathian Mountains. Since then they have discovered numerous new sources, for example , in the Ukhta (Russia) and Emba regions (Kazakhstan), near Saratov, Fergana (Uzbekistan), Samara, Volgograd and Grozny. In Europe they found rich deposits in Rumania and Italy, smaller ones in Austria and France. Germany also has several small but intensively worked fields.

1. Natural gas either occurs together with crude oil or forms separate deposits of gas alone.

2. Decomposition of both animal and vegetable remains over a period of many centuries without air is the source of natural gas.

3. In beds of sand, sandstones and limestones.

4. When a borehole reaches such a deposit the gas rushes up.

5. Russia has a gigantic network of pipelines.

6. Natural gas is an inflammable gas.

7. Natural gas consists of hydrocarbons with a very low boiling point.

8. Methane ( CH4 ) makes up approximately 85 per cent of the typical natural gas.

9. Natural gas has no distinct odour.

10. Yes, most of it we use as a fuel for the production of both heat and energy.

11. Natural gas is valuable also as an important chemical raw material for industry, as chemical technologists are able to obtain hydrogen, acetylene, carbon black and various chlorine derivatives.

12. Natural gas occurs mainly in Russia and some other CIS countries and in the United States where most of the extraction and utilization takes place.

13. In the Ukhta (Russia) and Emba regions (Kazakhstan), near Saratov, Fergana (Uzbekistan), Samara, Volgograd and Grozny.

14. In Europe they found rich deposits in Rumania and Italy, smaller ones in Austria and France. Germany also has several small but intensively worked fields.

An action in a sentence can be represented in two ways, namely active and passive voice.

The passive voice always uses the past participle form of the main verb irrespective of any tense. Only the auxiliary verbs depend upon the sentence given in active voice.

The given sentence is in the active voice.

The correct answer is B)When will a laptop be purchased by Rehan?

Option B) is correct as the subject of the given sentence comes in the place of the object and vice versa. Also, the main verb is used in the third form.

Options A, C, and D are not correct as the sentence structure is not correct, 'been' cannot be used and 'a laptop will come after will respectively.

Объяснение:

жмякай 5 звезд и лайк удачи

Choose the necessary word and put it in the sentence.

1. Though market research tries to predict the trends, there is no sure …   | 1. adaptation

2. This product isn’t original, it is an …    | 2. innovation

3. … office receives applications from many young inventors.    | 3. inadequate

4. If the price is …, the product won’t be sold out.    | 4. patent

5. A clock-television is an adaptation but the television itself is an …   | 5. failure

6. If a sure … is stopped, money and time can be saved.     | 6. success

7. They failed because of … promotion campaign.      | 7. unreasonable

Объяснение: