Answer:
Linear momentum= Mass*Velocity
P=mv
P=60*10
P=600Kg m/s
The answers are B, C, G, I
Hope I helped
(Don’t know if they are right)
Answer:
Person B
Explanation:
Person B will hear the frequency that is lower than the B- flat.
Answer:

- we have to protect ozone layer because it is like blanket for earth . It protects the earth form uv rays that are coming from the sun
we have to take some preventive. measures like
- Use ecofriendly things that Doesnot contain (cfc) . It is the major reason for ozone Deplition
Effects of uv rays
- Uv rays are very harmful . If it directly comes in contact with human it cause skin cancer , eyes irritation etc.
Hope it helps.
Answer:
c. by allowing people to easily travel to distant countries