Ventilation is the act of moving/pushing air into and out of the lungs.
Answer:
Vaccination involves showing the immune system something which looks very similar to a particular virus or bacteria, which helps the immune system be stronger when it is fighting against the real infection.
Explanation: "it is what it is".
Answer:
Potential energy and kinetic energy.
Explanation:
Kinetic is energy in a moving object
Potential is energy stored up to be used in future use