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

Author Question: What is the optimal level of fluoride in water? (Read 560 times)

leo leo

  • Hero Member
  • *****
  • Posts: 566

What is the optimal level of fluoride in water?


◦ 0.1-0.6 ppm
◦ 0.7-1.2 ppm
◦ 1.5-2.0 ppm
◦ 2.5-3.2 ppm


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by leo leo on May 15, 2019

patma1981

  • Sr. Member
  • ****
  • Posts: 292
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
Answer Preview
Only 39% of students answer this correctly



leo leo

  • Hero Member
  • *****
  • Posts: 566
Excellent



patma1981

  • Sr. Member
  • ****
  • Posts: 292
Great! Please up vote :D



 

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

For a complete list of videos, visit our video library