This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Why is secondary treatment often needed for sewage? A) The dissolved organics are too high and ... (Read 32 times)

bb

  • Hero Member
  • *****
  • Posts: 544
on: Aug 27, 2018
Why is secondary treatment often needed for sewage?
 
  A) The dissolved organics are too high and lead to bacterial growth.
  B) The solution is contaminated with dangerous bacteria.
  C) There are too many dissolved inorganic compounds.
  D) There are too many finely divided particles that need to be filtered.
  E) none of the above

Question 2

Earth's gravitational force is incapable of keeping the atmospheric helium from escaping into space.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

pami445

  • Sr. Member
  • ****
  • Posts: 303
Reply #1 on: Aug 27, 2018
Answer to Question 1

A

Answer to Question 2

TRUE


bb

  • Member
  • Posts: 544
Reply 2 on: Aug 27, 2018
:D TYSM

Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

The types of cancer that alpha interferons are used to treat include hairy cell leukemia, melanoma, follicular non-Hodgkin's lymphoma, and AIDS-related Kaposi's sarcoma.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Cell-mediated immunity, primary and secondary response. Cell-mediated immunity, primary and secondary response.
IgG after treatment with pepsin. IgG after treatment with pepsin.
The primary and secondary adaptive responses. The primary and secondary adaptive responses.
Drugs Used in the Treatment of Peptic Ulcer Disease (PUD) and GERD Drugs Used in the Treatment of Peptic Ulcer Disease (PUD) and GERD
Agents Used in the Treatment of Diabetes Mellitus Agents Used in the Treatment of Diabetes Mellitus
High school science classes are required to use deductive logic High school science classes are required to use deductive logic
Video: Krebs cycle : Formation of acetyl coenzyme A and Electron transport chain

For a complete list of videos, visit our video library