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:
The answer is C. Natural sources are limited. People tend to get their resources from the environment in order to live and survive. Because of the increasing number of human population, resources become scarce and there is not enough supply for consumption in the near future.
Answer:
C. Explain ONE way in which the USA & USSR competed against each other during the Cold
War in the Post-World War Two period (c. 1945-present)