All objects emit radiation?
a-electromagnetic
b-kinetic
d-solar

According to the phase diagram for water, how is the state of water determined? proceed up a vertical line at any given temperature read the phase at the intersection of any given temperature and pressure at a given pressure, proceed horizontally to the s-l or l-g line

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

What will a positive and a negative charge do if they are separated from each other?