One function of money is to allow comparisons between goods. for example, it would be difficult to compare "apples to oranges" if we could not say that apples cost $1.59 per pound, while oranges cost $0.99 per pound.

19838483818838484849 pieces of wood.

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.