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:
c. concrete operations
Explanation:
Concrete operations: This is the third stage in the cognitive development theory which is given by Jean Piaget. This stage starts in middle childhood from the age of seven and lasts around eleven years. It is distinguished by the development of rationale, logical, and organised thinking in an individual.
According to Piaget, the concrete operations developmental stage is involved.
Answer:
high, upper-middle, lower-middle, and low income countries.
Explanation:
Sail North at the Black Sea trade path could be used to get from Constantinople to Hamburg.
Trade is defined as the general marketplace of purchasing and promoting items, the way you are making a reside or the act of changing or buying and selling something. An instance of trade is the tea exchange where tea is imported from China and purchased within the US. An example of trade is while you paint in sales.
Trade is valuable to ending global poverty. countries that might be open to international exchange tend to grow faster, innovate, improve productiveness and provide better earnings and extra opportunities to their humans. The open change also benefits decrease-profits families via presenting clients extra less expensive items and services.
Trading method shopping for and promoting a batch of securities within an afternoon, or even inside seconds. It has nothing to do with investing in the conventional experience. it's far exploiting the inevitable up-and-down fee movements that arise throughout a trading session.
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