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The major harmful gas emitted by automobile vehicle which causes air pollution is
Air pollution caused by industrial fumes "has" been studied for years, "but " only recently "has" the harmful effects of noise pollution "become" known.
A motor pool has 300 vehicles of which 30% are trucks. 20% of all the vehicles in the motor pool are diesel, including 15 trucks. What percent of the motor pool is composed of vehicles that are neither trucks nor diesel?
Which of the following gases emitted from automobile exhaust is poisonous?
Studies of fatal automobile accidents reveal that , in the majority of cases in which one occupant of an automobile is killed another survives, it is the passenger , not the driver , who is killed. It is ironic that the innocent passenger should suffer for the driver's carelessness, while the driver often suffers only minor injuries or none at all. Which of the following is an assumption underlying the reasoning in the passage above?
Which gas emitted by power stations causes acid rain?
Choose the word that best completes the sentence : Noise pollution generally receives less attention than ----- air pollution.
Noise pollution generally receives less attention than------ air pollution.
Due to its excellent permeability to air/gas and oxidation resistance, the tubes of automobile tyres is made of
In 2003 the number of motor vehicles per square mile for Country E was approximately What percent of the number of motor vehicles per square mile for Country A?