B.) Gully erosion is what it would turn into.
It means that people will know if they are suffering from an illness, meaning that they have the advantage of being able to treat it. A disadvantage could be that if a disease is inactive or uncurable the person would be put through stress for no reason.
I have no idea, but I wouldn't use Wikipedia.. The "facts" on there aren't always true. That's why we aren't allowed to use it in my high school.
Answer:
where are the answers to it
Explanation: