20 points suppose you had two different types of crystals: one with a metallic appearance, and one with a pale pink color. which of the following must be a true statement? a. the crystals must be elements. b. the crystals must be compounds. c. the crystals are made of the same substance. d. the crystals could be elements or compounds.

Employer informs its employees that it will hold a substantial cash prize drawing for each work group at the end of each month in which no employee in the work group sustains a lost-time injury. tyra reports an injury that she sustained while operating a mechanical power press. tyra did not violate any employer safety rules when she sustained her injury. tyra’s injury requires her to miss work for two days. her employer cancels the cash prize drawing for that month for tyra’s work group because of tyra’s lost-time injury. did the employer misuse an incentive program to retaliate against tyra?