Name three major concepts or fields the Maya developed or improved on.

Why was the campaign in northern africa so important to the outcome of the war?

Card playing, and music were considered by the puritans to be taboo; these practices were prohibited

When there are advances in technology, such as the personal computer, how might business productivity change? a) productivity is separate from technological advances so there is no impact. the new technology can replace outdated, less efficient, machinery. o) the businesses' products will no longer be demanded. d) manufactured items will be made elsewhere.