When 500 phone books are recycled, which of the following statements is false? a. Conserves around 9 cubic yards in landfill space b. Conserves around 17-31 trees c. Conserves around 4,077 kilowatt hours of energy d. Conserves around 463 gallons of oil please select the best answer from the choices provided a b c d.

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.

Ithink the answer is d.

It would appear up top when they ask he question