Which must be true for metamorphism to occur?
a. the parent rock must be in solid form.
b. the parent rock must be igneous.
c. the grain size must become smaller.
d. the process must take place underwater.

Atoy manufacturing company currently produces 100 toys each day. the workers at that company earn $15 per hour. however, the government establishes a minimum wage of $24 per hour. the company cannot afford to keep all its workers, so it lays off some employees. how many people lose their jobs? a. 14 b. 18 c. 23 d. 41