Author Question: When municipal water treatment plants are not available, which of the following methods of ... (Read 66 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?

The term bacteria was devised in the 19th century by German biologist Ferdinand Cohn. He based it on the Greek word "bakterion" meaning a small rod or staff. Cohn is considered to be the father of modern bacteriology.

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

For a complete list of videos, visit our video library