B is the answer, they collected information firsthand.
Answer:
Probably the fourth option
Explanation:
The fourth option because the way the author is ending the paragraph seems like they are saying that the industrial revolution will have unknown consequences. (Said the seventh grader lol)
Hello. You forgot to put the graph to which this question refers. The graph is in the attached image.
Answer:
The vacation days are more evenly spread out in the year-round calendar.
Explanation:
As you can see, the clear parts of the graph represent the holidays that are provided to students. The second graph that represents the year-round calendar presents these clear parts in a more balanced and better distributed in relation to how these parts are presented in the first graph. In that case, we managed to realize that the year-round calendar. presents the vacation period in a more distributed and harmonious way.