Carbon monoxide is potentially dangerous because it A) ...

[serike]

Carbon monoxide is potentially dangerous because it
 
  A) replaces oxygen on red blood cells. B) causes genetic mutations.
  C) causes cancer. D) causes birth defects.

Question 2

At CO levels of 100 ppm or less in the bloodstream
 
  A) carbon monoxide can contribute to acid rain.
  B) there is no noticeable health effect.
  C) humans might develop headaches and suffer from impaired vision and judgment.
  D) the human bloodstream is unaffected.

[janeli1]

Answer to Question 1

A

Answer to Question 2

C

[serike]

Wow, this really help

[mochi09]

Thanks for the timely response, appreciate it