The shortened form of a word that has an apostrophe in place of a missing letter is called A contraction
Trees help purify our air. When the air is to contaminated trees take in all that contamination so we can breathe better.
You can find it in the front of a dictionary
Answer:
George's decision to kill Lennie is reminiscent of when Candy's old dog was killed. Whether or not it was justifiable is a matter of opinion, but George's intentions were not doubt pure. George knew that Lennie would no doubt have an awful life even if he wasn't caught, for at that time it was very difficult living with a mental handicap. George wanted Lennie to die while happy.