Answer:
Find the context clues.
Explanation:
Context clues help figure out the definition of a word based on the context it was used in and why the character could have used it.
Travel should not be free, but it also shouldnt cost a lot. It shouldnt be free because then some places could become over crowded or people could take advantage of things. (i feel like this,idk about you but eh)
Explanation:
the greatest distance that a wave, especially a sound or radio wave, moves up and down