Answer:
It is A
Explanation:
At year six more land became avaliable this is the only way that the population could grow so fast and it is correct on edg.
Answer:
thankkkk youuuu soo muchhh
Answer:

Explanation:
The speed of the waves in a string is related with the tension and mass per unit length of the string, as follows:

First, we calculate the mass per unit length:

Now, we calculate the speed of the waves:

That statement is flase. The index of refraction
of every material is more than 1.0 .