What is classified as neither a solid, liquid, or gas

Disinfection of impression materials is usually accomplished by a. sterilization with high heat. b. spray or immersion in a chemical disinfectant. c. sterilization with steam under pressure. d. allowing the impression to sit 24 hours in water until all the organisms die.

What do scientists need to look at before developing an argument

Patient has just received an organ transplant which treatment would be most effective in preventing the patient’s body from