Answer: Unusual sounds or noises, sights,smells or odors, appearances or behaviors are often
the first sign of an emergency.
Bystander roles in an emergency may include giving first aid, calling 9-1-1 or the designated emergency number, or getting equipment
( for example: A first aid kit).
Explanation:
Chemicals produced by bacteria that limit the growth of other bacteria are called antibiotics.
Answer:
difficult
Explanation:
I guessed because I'm smart
Skin pigments actually protect us from ultraviolet rays!
