I'm not sure but I think it's B
Answer:
6.7 minutes
Explanation:
In a solid such as rock, the primary wave can travel at 5 km/sec; it would take 400 seconds, or about 6.7 minutes to travel 2,000 km.
The answer is C because many of the funcions that the family used to serve have been outsourced to other institutions
Does it give you a word box to choose from?
