Which of the following removes larger particles from sewage by screening or settling?

A. primary sewage treatment
B. tertiary sewage treatment
C. activated sludge sewage treatment
D. secondary sewage treatment


Answer: A

Environmental & Atmospheric Sciences

You might also like to view...

What trophic level is occupied by the emperor penguin in the above food web? Briefly state the reason for your choice

What will be an ideal response

Environmental & Atmospheric Sciences

Water in a(n) ___________ may be brackish as a result of the mixing of freshwater and saltwater with tidal

fluctuations. Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

The Big Rock Mining company decides to build a mine shaft in South Africa that extends 3.5 km beneath Earth's surface. What approximate temperature would a person experience at the bottom of the mine shaft? (Hint: use the average accepted value for geothermal gradient.)

A. 88°C B. 25°C C. 110°C D. 75°C

Environmental & Atmospheric Sciences

Contrails form due to the heating of air by aircraft engine exhaust

a. True b. False

Environmental & Atmospheric Sciences