C. From what I have read they come from the outdoors.
C talk test is not an effective way
Answer:
Without sparks and flames, and non-flammable equipment.
Explanation:
Cleaning flammable equipment isn't a good idea, since it could catch on fire.
This chemical needs to be kept away from anything that can ignite it, such as sparks or flames.
<span>Bacterial infections are common and are best treated with antiviral medications.
Hope this helped!</span>
