Задания к тексту
- 1. Complete the following sentences according to the text.
1) Natural gas is used extensively as an illuminant and a fuel be cause of its ....
2) One of the earliest attempts to harness it for economic use occurred in ....
3) Liquefied natural gas is natural gas that has been ....
4) The composition of natural gas varies ....
5) The chief component of gas is ... .
6) Some geologists theorize that natural gas is ....
7) Others think it may be ... .
- 2. Answer the following questions and give examples.
1) What was their idea about its origin?
2) When did the first attempt to harness it for economic use take place?
3) What is LNG?
4) What made the production and transport of LNG commercially feasible?
5) What is natural gas?
6) What is its chief component?
7) Does it occur in petroleum deposits only?
8) What are the main theories of gas origin?
9) What are its main properties?
10) Natural gas wasn't known to the ancients was it? Why? Why not?