Answer: Coagulation and flocculation are often the first steps in water treatment. Chemicals with a positive charge are added to the water. The positive charge of these chemicals neutralizes the negative charge of dirt and other dissolved particles in the water.
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Answer:
a. human geography
Explanation:
he is studying how people move
Answer:
Scalar quantity
Explanation:
Scalar quantities give a magnitude, while vector quantities give a magnitude and a direction. The answer will be a measurement that does not change, regardless of the direction of action. Displacement is a measure of length in a given direction; distance is the scalar version of displacement. hence length is scalar quantity
A scientist took this picture and concluded that ________.
the stars could not be seen because of light pollution
the stars were too far away to observe without a telescope
there were many patterns of stars in the sky
there were no stars in the sky that night
Answer:
A scientist took this picture and concluded that the stars could not be seen because of light pollution....
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ANDES is the answer for which mountain chain is 4,500 miles long, forms South America
