Author Question: When municipal water treatment plants are not available, which of the following methods of ... (Read 76 times)

jho37

  • Hero Member
  • *****
  • Posts: 531
When municipal water treatment plants are not available, which of the following methods of purification might be utilized?
 
  A) chemical purification with chlorine
  B) reverse osmosis
  C) chemical purification with iodine
  D) boiling
  E) C and D

Question 2

Because vitamins are so good for us, it is important that we ________.
 
  A) take large quantities of them
  B) obtain them only from the foods we eat
  C) be mindful not to take excessive quantities of them
  D) spend lots of money buying mega-vitamin supplements



ryrychapman11

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

E

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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.

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

For a complete list of videos, visit our video library