« previous next »

Author Question: When municipal water treatment plants are not available, which of the following methods of ... (Read 74 times)

jho37

  • Hero Member
  • *****
  • Posts: 531
on: Aug 27, 2018
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
Reply #1 on: Aug 27, 2018
Answer to Question 1

E

Answer to Question 2

C


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

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 use of salicylates dates back 2,500 years to Hippocrates’s recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

A pteridophyte stem with tracheophyte adaptations for transporting and conserving water. A pteridophyte stem with tracheophyte adaptations for transporting and conserving water.
The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport. The roles of transpiration, cohesion, adhesion, and tension in long-distance water transport.
Testing the effects of long-term fertilizing on inter-actions between mycorrhizal fungi and plants o Testing the effects of long-term fertilizing on inter-actions between mycorrhizal fungi and plants o
The leaf is usually the primary site of photosynthesis in plants. The leaf is usually the primary site of photosynthesis in plants.
Bees and Plants Bees and Plants
Dental Related Adverse Effects in Patients Undergoing Cancer Treatment Dental Related Adverse Effects in Patients Undergoing Cancer Treatment
Video: Calvin cycle (The light-independent reactions )

For a complete list of videos, visit our video library