How do i know which one to use, a comma , semicolon or neither

The hawks are an allegory for the dangers the boy is about to encounter in the desert.which quotation from the alchemist best supports this statement? "sit down. we'll have something to drink and eat these hawks,' said the alchemist.""he watched the hawks as they drifted on the wind. although their flight appeared to have no pattern, it made a certain kind of sensetthe boy.""suddenly, one of the hawks made a flashing dive through the sky, attacking the other. as it did so, a sudden, fleeting image came to tboy."o "who dares to read the meaning of the flight of the hawks? ' he "

The local school board would like to change the school calendar so that students are in school year round. do you think this is a good idea or a bad idea? to you see which side you want to defend answer this question from both angles.

What is chemistry and it applications