Which statement best describes an effect of the intense drought that occurred in the great plains during the 1930s?.

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.

The answer is 46,637.5

Um ok I guess I will