Which of the following best describes the narrator's tone regarding the family? a. Sarcastic b. Trivial c. Judgmental d. Frustrated​

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers

the bal will not change its velocity.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.