Air pollution resulting from the combination of gases produced by burning fossil fuels is called .

A) acid rain
B) smog
C) chimney effect
D) environmental tobacco smoke
E) weathering

Free points + free ! if answered correctly which of these is not a good tip for passing? a. make sure you are on an area of road where it is legal and safe to pass. b. always drive at a safe speed at or below the speed limit. c. you may reduce your following distance below four seconds when passing. d. make sure there is a safe gap in traffic before you change lanes.

Some studies have found that what percentage of students have cheated in some form? a. 10% b. 25% c. 45% d. 75%

Which of the following activities would conserve the most energy? installing a dimmer switch on a light using a blender instead of a food processor hanging clothes to dry on a clothesline instead of ironing them opening a window instead of turning on the air conditioning setting your computer's screen saver to turn on after less time has elapsed