The fossil fuel are formed under the earth's surface from dead plants or animals, after a.............Period of time
short
Very long
long
when carbon dioxide gas inceases, the earth’s tempeature .....
Decreases slowly
doesn't change
Increases slowly
which of thefollowing sentences describes the most important thing for the driver, during driving a car for a long distance
The presence of a radio
The fuel tank contains enough amount of gasoline
The presence of a speedometer
the devices in the electric power station which opeated by steam are...............
the cables
the tubes.
the turbines
car engine can be operated by......
Gasoline and natural gas.
Gasoline only
Coal only
we have to ............, to produce steam inside the electric power station.
Heat the water
Cool the water
freeze the water
The genentor inside the elecric power station, turns................
Steam into water
Kinetic energy into electrical energy
Elenrical energy into kinetic energy
we have to protect sones of buildings from..............
global warming
Oxygen gas
acid rain
The fuel must be ...... at first to move a car.
cooled
freezed
burned inside the car engine
The two main types of fuel are..............
The sun and the moon
Water and wind
Fossil fuel and biofuel