Some studies have shown that peppermint odor increases people’s mental sharpness, especially when they solve math problems. Which best describes how this could be a valid scientific claim?

Occurs with the fully informed request of a competant adult patient or their surrogate. culture of life: select the best answer from the choices provided. a. voluntary euthanasia b. nonvoluntary euthanasia c. involuntary euthanasia d. passive euthanasia