I may be wrong but i read that if the annual nile floods were to low it could cause drought and they would starve.
It was established in Persia, today's Iran.
It has the lands of Iran and many of its today neighbourIng coutries, such as a big part of Turkey Aghanistan and Pakistan.
Answer:
The speed of the airplane is approximately 770 km/h (214 m/s).
Explanation:
Speed = 
Distance = 3080 km
Time = 4 hours
speed = 
= 770
speed = 770 km/h
The speed of the airplane is 770 km/h.
OR
Distance = 3080 km
But,
1 000 m = 1 km
3080 km = 3080000 m
distance = 3080000 m
Time = 4 hours
60 seconds = 1 minute
60 minutes = 1 hour
Thus, 4 hours = 60 x 60 x 4
= 14400 seconds
Therefore,
speed = 
= 213.8889
speed ≅ 214 m/s
The speed of the airplane is approximately 214 m/s.
Points 3, 11, 13, 2, 12. It's so important because countries trade with each other over seas and countries depend on free trade.