Answer:
Portuguese and Spain engaged in exploration because for the sake of their economy, religion, and glory.
Explanation:
Portuguese and Spain entered in the age of exploration during the 15th century. Both the empires took the lead for navigating and exploring because they were searching for the new route to find wealth and land. The exploration began because of the high prices of the imported goods and spices brought by the Silk Route.
China, India, Islamic states, and Japan did not enter in exploration because they were not part of European competition. Their region involved with the Silk Route.
America remains hidden from the world until Christopher Columbus discover in 1492. Africa came into contact with Europe when Bartolomeu Dias found South Africa in 1488.
western schism was a splitt in the Catholic church between 1378 and 1417 while the victory of Charles Martel in the battle of tours was the victory of Christians over Spanish moors which stopped Muslim advances to Eastern Europe.
Explanation
Western schism occurred due to the conflicts in the Catholic church and two men simulatneously claimed to be the pope.The rivalry defamed the Catholic church and came to an end in 1418.
Battle of tours was much different from western schism because it was not a conflict within a religious authority but a conflict between two kingdoms.
Light bulbs were the power source used in factories during the industrialization
It changed during World War 2 II. December 7, 1941, was a traumatic event in World history. The Japanese attacked the Americans at Pearl Harbor. Then Hitler declared war on the U.S. In 1945, the U.S. claims a world's primacy as the world's superpower by dropping two nuclear bombs on Japan and the Nuclear Age began.
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.