You have a sealed glass jar full of air. if you put it in the freezer, what happens to the gas pressure in the jar?

Could someone . i have tried to solve myself but my calculation is off

Critical mass is the of material required to produce a chain reaction. a.) minimum amount b.) atomic mass c.) precise amount d.) maximum amount

Inside of a windmill or a dam is a that is used to transform one type of energy into electrical energy. a. motor b. generator c. transformer d. power pack