A. Major Ethnic Groups of North Africa
They supplied things that were needed and demanded
Answer:
Speed of sound wave v=νλ=2000×0.35=700 m/s
Distance d=1.5 km=1500 m
Time t=vd=7001500≈2 s
B, have been stagnant in their numbers.
They are both very important holy cities in Islam
Mecca is the birthplace of the prophet Muhammad and Kaaba is also located there
Medina is where the early Muslim community developed
I hope this helps:)
