Government control is the second major requirement that must be met before information can be classified. Information must be under U.S. Government control before classification of that information by that government is anything other than a relatively ineffective action.
The final treatment of wastewater in the united states normally involves treatment with Chlorine to make it safe.
The final stage of the wastewater treatment process, which is when it is often carried out in most treatment plants, can also include chlorination. The primary goals of this chlorine addition are water disinfection and maintaining chlorine residuals that will stay in the water as it moves through the distribution system.
In the US, wastewater treatment facilities treat over 34 billion gallons of wastewater per day. Human waste, food waste, and some soaps and detergents all contribute nitrogen and phosphorus to wastewater. Once the water has been cleansed to the standards required and observed by state and federal authorities, it is often released into a nearby water body.
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Answer:
The correct answer is option A: Printmaking
Explanation:
Originated from China de printinpress came to Europe in the 14th century and was made popular by Johannes Gutenberg who printed the bible and made printing popular and possible in mass production.
Answer:
A. God sent many plaques to Egypt
