Awater treatment facility that has been using chlorine to disinfect wastewater is considering changing processes. which of the following is an effective alternative to using chlorine? (3 points)

aerating the wastewater

adding alum to the wastewater

filtering the wastewater through charcoal

heating the wastewater to its boiling point

exposing the wastewater to ultraviolet radiation

Where would you be most likely to find a freshet?

This phrase from the declaration of independence and its primary author thomas jefferson can be used to justify which statement? a) jefferson thought this document could be used in his defense were he put on trial for treason. b) jefferson knew that the colonists' actions would have an international impact. c) jefferson believed that a bill of rights was necessary in the new government. d) jefferson was trying to show the king that the colonists were intellectuals.

What man-made lake was created by the building of the hoover dam?