Inflation is the term I think youre looking for
The answer is B because I got it
Answer:
a. each particle of matter vibrates about its normal rest position and along the axis of propagation,
b. Liquids
C. because liquids have the right amount of space between them for the wave to pass through quickly
Explanation:
Synonyms for the word externality could be: face, area, level, side, skin, top, etc.