How is electricity important to invention in general

Will give brainliest what changes took place in the soviet union and eastern europe after ww2

How did inca develop their road system? a) they used mortar to hold the stones together.b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks.d) they laid roads in the cities, not in the less densely populated deserts.

Who was partially responsible for plotting the saint bartholomew’s day massacre? a. henry iii b. henry iv c. pope gregory vii d. pope innocent iii