What is the purpose of a guard band? a. It performs error checking in TDM b. It prevents interference between channels in FDM c. It prevents interference between channels in TDM d. It provides analog modulation

Write lines of verse that rhyme to remember the following information: acid rain is a type of air pollution caused by chemicals in the air.

Octothorpe is another name for what common computer keyboard symbol?

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)