Secondary sewage treatment is designed primarily to ________
A) remove the dissolved organic matter
B) pretreat wastewater on its way to tertiary treatment
C) remove hazardous chemicals such as pesticides and heavy metals
D) remove the solids
E) remove all bacteria and microorganisms
Answer: A
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A continental polar (cP) air mass moves into the territory occupied a continental tropical (cT) air mass. What is likely to happen?
A. A stationary front forms. B. The air masses mix creating an air mass of average temperature. C. A cold front forms at the boundary between the two air masses. D. A cold front extends from the boundary zone into the territory occupied by the continental tropical (cT) air mass.
In clear weather the air next to the ground is usually __________ than the air above during the
night, and __________ than the air above during the day. a. colder, warmer b. colder, colder c. warmer, colder d. warmer, warmer
Sketch a cross-sectional view of Earth's interior, and label each of the layers you depict
What will be an ideal response?
The Smithsonian decides to apply this method to other species of birds. Which of the following do they compare?
What will be an ideal response?