Each color is visible light corresponds to a different? a- wavelength and frequency b-atomic number c-number of electrons

Which of the following harmful chemicals are found in tobacco smoke? a. carbon monoxide b. carbon dioxide c. nicotine b. carbon dioxide d. both a and c

Which of the choices below is one of the primary gases found in the atmosphere? a. helium b. carbon dioxide c. nitrogen d. argon

What is a neurotransmitter involved in mood reward, addiction, and motor behaviors?