Ashley wants to know the oldest form of both water purification and waste disposal. Help Ashley determine the methods. The oldest method of water purification is . The oldest method of waste disposal is .

Distillation and Landfill

Explanation:

Distillation is the old method of water purification, these process involves the separation of compounds or components of a mixture based on their different boiling points. Today we have advanced method of seperation, although Distillation is still being used.

Land fill is one of the oldest form of waste disposal, these method involves digging up a large land mass(depending on the waste to be disposed) and dumping the water into the dugged land mass, then cover it up with the sand that was dugged out. Today, they are more advanced ways to handle wastes such as incinerator.