Answer:
to reduce the amount of excavation work required for the canal above sea level and then lower the ships at the other end
Explanation:
The Cuban Missile Crisis. The fear on both sides was that someone would push a button and all out war (perhaps the end of the planet as we understand it) would result. Both countries had ICBMs but America's were better. They could hit Russia. Russia had no real answer and Cuba is too small a defensive position. So Khrushchev blinked and took his threat home. It didn't take her long to catch up but by that time the political situation altered.
I would say d. they believed in education for all. there was no education for the puritans.
Whats the qeuun? I think you misspelled something.
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The changes that the Mongols brought to china was :
The Mongols established the Yuan dynasty
It was established by a Mongolian leader named Kublai Khan
hope this helps