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In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21st century unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy which is not only cheap, but also highly efficient.

1. What is natural gas used for?

à__________________________________________________________________

2. Where does it come from?

à__________________________________________________________________

3. What is gas used chiefly as? When will it run out?

à__________________________________________________________________

4. What can be used as a substitute for natural gas?

à__________________________________________________________________

5. Is natural gas expensive or cheap?

à__________________________________________________________________

_silverlining
16 tháng 6 2019 lúc 19:54

In Britain, natural gas is the most popular fuel for heating homes, and for cooking. It is piped all over the country from the gas fields below the North sea. Natural gas is used chiefly as a direct source of energy, although it is also used in the chemical industry. At the moment, the supply is plentiful, but it will be running short by the end of the century, and it will run out during the 21stcentury unless new supplies are found. We could do without natural gas, as coal gas can be used as a substitute, and there should be enough coal to last for several centuries. However, it is a form of energy which is not only cheap, but also highly efficient.

1. What is natural gas used for?

à__________________________For heating homes, and for cooking. ________________________________________

2. Where does it come from?

à_______________________it comes from all over the country from the gas fields below the North sea.___________________________________________

3. What is gas used chiefly as? When will it run out?

à__________________Natural gas is used chiefly as a direct source of energy. It will run out during the 21stcentury________________________________________________

4. What can be used as a substitute for natural gas?

à____________________ coal gas can be used as a substitute for natural gas______________________________________________

5. Is natural gas expensive or cheap?

à________________It is cheap__________________________________________________


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