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Author Question: What is the approximate fluoride concentration in community water supplies? a. 1 ppm b. 2 ppm c. ... (Read 138 times)

captainjonesify

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on: Aug 21, 2018
What is the approximate fluoride concentration in community water supplies?
 a. 1 ppm b. 2 ppm
  c. 2.5 ppm d. 4 ppm

Question 2

Which of the following is characterized by persistent inflammation and excessive secretions of mucus in the main airways of the lungs?
 a. Asthma b. Chronic bronchitis
  c. Emphysema d. Pneumonia


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fraziera112

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Reply #1 on: Aug 21, 2018
Answer to Question 1

a

Answer to Question 2

b


captainjonesify

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Reply 2 on: Aug 21, 2018
Thanks for the timely response, appreciate it

helenmarkerine

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Reply 3 on: Yesterday
Excellent

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