Is motherboard a: a. operating system b. software c. hardware d. input device

The egyptians invented the ? to water their crops, and may have used the ? to build the pyramids.

During physical science class ben and jerry connected three identical lightbulbs in parallel to a battery where happens when ben removes one of the lightbulbs from it’s socket

Which demographic challenge is europe currently experiencing? a. an aging and decreasing population b. a baby boomc. an unequal distribution between males and females d. a large group of teenagers moving through the school system(i chose a but i'm unsure)