A scientist collects a core sample from 60 km deep in Earth. Which characteristic will she most likely observe in this sample? The sample has high iron content. The sample is very hot and liquefied. The sample mainly consists of granite. The sample is very young.

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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.