During the recent Venus transit (June 2012), the planet appeared as a tiny black circle moving on the Sun. The black colour on the sun is because the planet :
The above-given statement is absolutely true. Poorly tuned engines of vehicles will not get good gas mileage.
A poorly running engine may lose power that is needed for normal driving and emergencies, may not start, gets poor fuel economy, pollutes the air, and could stall when you are on the road causing a traffic problem.
Volatile memory is computer memory that requires power to maintain the stored information.It is a temporary memeory which cannot contain information permanently.