B. Sleep Disorders because thats mental
Answer:
I think it's A.
Explanation:
It contains significant amounts of valuable metals such as mercury, cadmium, and lead that can be harvested and sold.
Answer: They are highly communicable (spread from person to person)
Explanation: Not all STDs are curable most can get meds that make the symptoms not as but they will not cure the person. They do not always have symptoms some do not know they have it till testing has been done. They cannot spread through casual contact, sexual intercourse, oral, or kissing needs to happen. they are highly communicable because they can be passed from person to person through their methods of being passed.
