*Rewrite the following sentences based on the given words:
10.People will use biogas for fuel in homes and for the transport.
=> Biogas ……………………………………………………………………………………………….
11. They will build the power station at the beginning of next year.
=> The power station ....................................................... .
12. Cleaner and safer energy sources will replace fossil fuels in the future.
=> Fossil fuels ……………………………………………………………………………..…
13. The countryside doesn’t suffer as much pollution as the city.
=> The city .............................................. than the country.
14. There used to be fewer cars on the roads before.
=> Now there ……………………………………………………………………………………