Uhh there are no answers repost and I’ll answer for you :)
It should be removed from the editorial piece because it is repetitive to the rest of it pointing out the fact they we in the United States should get rid of nine-month calender's and continue with year-round schooling. Also in sentence 1) it should either be (help a student's achievement) or (help student's with their achievements)
Answer:
Ask someone to is the answer
The sentence describing the main idea would be
Greenhouse gasses over the years.
This paragraphs talks about the increasing temperatures that were registered over the past years and what experts think about the warming.
It also explains that in the future, 2015, there could be another year of record heat
