How do i identify the main idea of "the martian" (amazing movie! ) and what is the main idea?

When grendel speaks of unferth and says "i could crush him like a fly" what literary device is being used

Based on the cause-and-effect relationship in this sentence, what is the meaning of the word illuminate? the colors and patterns on the stained glass windows were illuminated as thousands of candles burned during the special church service. a) to melt or change form b) to grow taller or wider c) to become extremely hot d) to light up or make clear

When aquinas realized that he could not find all the answers, he turned to