Answer:
Longitudinal waves are waves in which the displacement of the medium is in the same direction as, or the opposite direction to, the direction of propagation of the wave. ... In longitudinal waves, the displacement of the medium is parallel to the propagation of the wave.
Answer:
b
Explanation:
a dialogue is conversation of two or more people to resolve a problem.
Answer:
well, the virus that's been going around has changed a lot of things like we can't socialize, do things we enjoy, or go to school and work. people are losing their jobs and businesses and there are more people with depression and anxiety because they are afraid to lose their loved ones. hope this helps