Which option is an example of environmentally friendly driving?
Review of the options:
Very slow speed increase. – Wrong, while increasing speed the fuel consumption is high, as it requires power to increase speed.
Skipping gears. – Correct, in keeping with increasing speed quickly, which is helped by not running up through all the gears.
Driving in as low a gear as possible. – Wrong, low gears make the car more powerful, which requires more fuel. Less fuel is consumed by the high gears. (Low gears refers to a low number, fifth = high, first = low.)
Maintaining an engine speed of at least 3,000 rpm. – Wrong, the revs per minutes are to be kept under 3,000 rpm. Over 3,000 rpm can overload the catalytic converter.