This topic contains a solution. Click here to go to the answer

Author Question: Primary sewage treatment involves A) aeration. B) settling. C) chemical treatment. D) Primary ... (Read 74 times)

P68T

  • Hero Member
  • *****
  • Posts: 509
Primary sewage treatment involves
 
  A) aeration.
  B) settling.
  C) chemical treatment.
  D) Primary sewage treatment involves all of the above.

Question 2

The helical structure of certain proteins, such as wool, is part of the protein's
 
  A) primary structure.
  B) secondary structure.
  C) tertiary structure.
  D) quaternary structure.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dominic

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

B

Answer to Question 2

B




P68T

  • Member
  • Posts: 509
Reply 2 on: Aug 27, 2018
Thanks for the timely response, appreciate it


sailorcrescent

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

For a complete list of videos, visit our video library