Use the information from this passage to match the vitamins and minerals to their uses within the body. Vitamins and Minerals helps to maintain good vision. helps to maintain water balance inside the body. helps in normal blood clotting. helps red blood cells transport oxygen. helps to form connective tissue.

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.