HELP WILL GIVE BRAINLIEST

Read this excerpt from A Black Hole Is NOT a Hole.

One of the best black-hole clues is X-ray energy. As matter approaches an event horizon, its atoms "shine" with invisible X-rays. Although our eyes can't see the X-rays, we can make detectors that respond to their tremendous energy.

X-ray-catching telescopes make pictures of otherwise invisible X-rays. The pictures reveal that certain areas in outer space are emitting intense X-rays. Each bright location points out where something extraordinary is going on. It is a hint that a black hole might be there.

Why does the author include this description?

to explain why humans cannot see X-rays
to explain how X-rays help scientists study space
to explain that black holes are extraordinary
to explain where black holes are located

What if puerto rico required all cement to carry a label with the location where it was manufactured and the date it was packaged? does that regulation discriminate against interstate manufacturers?

Can someone explain this to me clearly plz

Read these paragraphs from the story. i told him my address. it would take an hour’s quick walk to get back home. “it’s like this,” he said. “we’ll look at the matter straight. if you go back home tonight, you take your chance of accidents. a cart may run over you, and there’s always banana skins and orange peel, to say nothing of fallen ladders.” he spoke of the improbable with an intense seriousness that would have been laughable six hours before. but i did not laugh. what does this interaction between the two men reveal about james? james is skeptical and thinks mr. atkinson is overreacting to the situation. james is dismayed by the things mr. atkinson says and begins to feel uncomfortable. james is surprised by mr. atkinson's solemnness and thinks there is value in what the man is saying. james is appreciative of mr. atkinson's concern and wonders if he should hurry home. the correct answer is; "james is surprised by mr. atkinson's solemnness and thinks there is value in what the man is saying." i am not putting this up so someone can answer but so when people search this they will know the correct the correct answer is not; "james is skeptical and thinks mr. atkinson is overreacting to the situation." everyone said that was the right answer but its your