Ludwig van Beethoven was a German composer and pianist. He was a crucial figure in the transition between the classical and romantic eras in classical music and is considered to be one of the greatest composers of all time.
The answer should be A, the "Baby Boomers" supported in The Vietnam War.
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.
Answer: In ancient times, the geographic features of China insulated the country from the rest of the world. Natural barriers,such as mountains,deserts,rivers,and seas,made travel to and from China challengeing....They made the spread of ideas and goods between the ancient Chinese and others outside the region difficult.
Explanation: