SOCIAL MEDIA PLEASE HELP!!

1. What are the three primary photo-based social media sites? What method of photo
sharing have these sites replaced?

This is a type of government in which a group of individual states are united under astrong, central government.

3christians adapted the roman basilica and used it for public worship. where in their churches did they place the altar?

Acurator decides to display an eighteenth-century painting in a windowless room with controlled temperature and humidity. pick the answer that best describes the reasons for her choice: (1 point) 1)the curator wants to make sure that the temperature and humidity are comfortable for visitors. 2)keeping the temperature and humidity at a set level will save money. 3)the ultraviolet rays will damage the painting by fading and flaking the paint. 4)ultraviolet rays will fade the paint pigment and high temperature and humidity will damage the paint.