The Pre-Columbian civilizations of the Maya, Aztec, and Inca were similar in that they: (no links no viruses) if you do links I will report you! if you get it right I will mark as brainlist! please help this was due at 3:30 pm for a quiz have asked but no one helps! already late on it Turing in so please! A:lacked a strong central government.
B:showed little evidence of urbanization.
C:developed complex mathematical and calendar systems.
D:used more deadly and effective military technology than the Europeans.

The nineteenth century was an era of great inventions in the united states. look at the list of inventions below and order them from most to least important (in your opinion). then explain why you ranked the top three inventions as most important. 1834: refrigerator invented by jacob perkins 1837: morse code invented by samuel morse 1853: elevator invented by elisha graves otis 1873: typewriter invented by christopher latham sholes 1876: telephone invented by alexander graham bell 1877: gramophone invented by thomas edison 1879: light bulb invented by thomas edison 1886: dishwasher invented by josephine cochran

Which native american tribe allied with the spanish?

Kublai khan honored his mongol heritage by: a)marring only one wife b)praying facing mecca five times a day c)slaughtering ten chinese officials every year d)building a large enclosed hunting ground at shangdu, his summer palace