Read this excerpt from A Black Hole Is NOT a Hole. Acting on the hint, scientists search the X-rays for patterns that most likely signal black holes. One pattern is an X-ray ring that seems to surround nothing. The nothing part might be a black hole. If so, the ring is energy released by super-heated matter spiraling just outside the event horizon. Which statement best identifies the type and use of description? The word is signals a characteristic of an X-ray pattern. The phrase most likely signals an example of an X-ray pattern.

The correct answer is: The word is signals a characteristic of an X-ray pattern.

Explanation:

In this excerpt, the author describes how the scientists are searching for X-ray patterns that signal black holes. In this case, the word signals a characteristic of an X-ray pattern. Therefore, we could say that the description is based on the characteristics of X-ray patterns, which can signalize a black hole.

in ray bradbury's short story "a sound of thunder", mr. eckels's fearfulness leads to drastic consequences for the rest of the world.

in the story, mr. eckels, who is a hunter, hires a time travel company to travel to the age of dinosaurs. although he is excited for the hunting expedition at the beginning, when they reach there and mr. eckels sees the tyrannosaurus, he feels frightened. as he is afraid of the tyrannosaurus, he steps off the path although he has been warned not to do it. by stepping off the path, the entire course of the future is affected: mr. eckart alters the future by stepping on a butterfly, which causes a new man to be elected president in the future. in that way, it is mr. eckart's fearfulness what triggers 'the butterfly effect' and what leads to drastic consequences for the rest of the world.

b. the colonies must seek protection from other nations.