Based on this information what is the most likely reason for refrigerating most foods reduce the rate at which they spoil

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

Identify and describe the three ways that mutations affect organisms.

Will mark brainliest how many electrons can be held in the energy level n = 4?