Why does Steve say he wants to open his shirt when Miss O’Brien looks at him in the book monster

What is the meaning of the word checking as it is used in this sentence from the second paragraph of the passage?

If the author's last name is mentioned in the sentence, it does not need to be included in the in-text citation.

How did magellan's discovery of what is now considered the philippines directly affect the native populations that were living there? a.they disappeared deep into the new land and started another settlement b. they became aggressive after having a new religious view upon them c. they became restless to travel the world on the ships they encountered d.they became angered over losing their lands' raw goods like fruits and spices