What maintains data about various types of objects, events, people, and places?

Horseback riders, bicyclists, and skateboarders the rules of right-of-way when they use the road ?

Janet has to prepare a presentation on business strategies for work. which guideline should she follow to create an effective presentation? a. use a readable font b. use a multicolored background c. use a small, but stylish font d. include detailed text

What is data validation? (in a simple definition)