Due to the external atmospheric pressure. Initially the pressure inside the can is balanced by the atmospheric pressure. But as the air is removed from inside, the external pressure dominates.
Adams believed that a stable and democratic government required the consent of the governed and the separation of powers among the executive, legislature, and judiciary, and a bicameral (two-body) legislature.
ANSWER
The government would not be controlled by the executive branch , he feared it would become to powerful , creating a monarchy
Πir happend when they were looking for frogs and living with the grandma
According to Karl Marx, the founder of communism, here are its main or defining characteristics (there are four of them):
Class Struggle,
Ending the Private Ownership of Property and means of Production,
Communism through Socialism, and
Marxist-Leninist Communism.
Hopefully my answer has come to your help.