mountainous I hope I helped and make sure to make me brainlest
The correct answer is the Canadian Rebellion
It was an event in 1837 in which the Lower and Upper Canada had a series of rebellions against Britain because of the way they were treated as colonies. This brought them on the Brink of war with the United States for various reasons, mostly about Britain controlling areas on the New World and the fact that Canada didn't look the same as it does today.
Answer:
Artificial intelligence such as Robots
Explanation:
In 18th century, slavery was at peak value since there was high need of labour.
In 20th century, scientists have created robots which has replaced slaves hence slavery decayed.