What is the system that was established by the Constitution which prevents any branch of government from becoming too powerful called?

1) preamble
2)checks and balances
3)branches of government
4)the check system

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

i really do want to but i just don't know it i'm so sorry : (

the wants of children today than in colonial times are very different. as well as the roles. children now have electronics such as phones, tablets, tvs, etc. back then, kids didn’t have electronics. in the colonial times, children were expected to their parents in their work. but now, children are expected to go to school.

hope i

-lavira : )

safaid was known as the most beautiful architecture