Which is an accurate statement about the aztec empire?

a.
it created a vast system of roads to link its mountainous empire

b.
its capital city tenochtitlán was built on an island in the middle of a lake.

c.
it was the earliest civilization in the americas.

d.
it extended from southern mexico across belize and guatemala into parts of honduras and el salvador.

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

What were the purposes of salt? check all of the boxes that apply. -to achieve peace -to protect the security of the united states -to form an alliance against communist nations - to stop the nuclear arms race - to give the united states an advantage over the soviet union

What were some effects in world war 1 in europe ? ( and only in europe)