Answer:hydrated lime is used initially to precipate most of the sulfate as gypsum
Explanation:
The most common method for removing sulfate from highly concentrated waste water is the addition of lime which precipitate calcium sulphate
The next step is the addition of CESR reagent to lime water treated precipitate sulfate..we have the steps as followed: initial surface precipation, metal hydroxide precipitation, final surface precipitation and pH reduction/recarbonation
Because "<span>Internal validity is the highest priority for theory-testing".</span>
Ecological
validity<span> alludes
to the degree to which the discoveries of an examination can be summed up to
genuine real life settings. While internal validity is a logical idea
that tends to the connection between two factors. It alludes to the degree that
an investigation can rule out or make improbable exchange clarifications of the
outcomes.</span>
B was not an intolerable act
Answer:
The main provisions of the Treaty of Versailles required Germany to surrender land and colonial holdings, reduce the size of their military, pay billions in war reparations, and claim full responsibility for the start of World War I. The Treaty of Versailles also called for the creation of the League of Nations, an international organization intended to prevent future global conflicts.
Explanation:
Answer: Hello, Some of these impacts include algae blooms causing the depletion of oxygen in surface waters, pathogens and nitrates in drinking water, and the emission of odors and gases into the air. Nutrients from manure and fertilizers enter lakes and streams through runoff and soil erosion.
Explanation:
