Answer:
Gray water is somewhat (mostly) clean waste water. It can be from baths, sinks, kitchen appliances, and more.
I think the cause of the illness is Rota-virus. Its a contagious virus that can cause gastroenteritis(inflammation of the stomach and intestines|). Symptoms include severe watery diarrhea, vomiting, fever and abdominal pains. Infants and young children are most likely to get rota virus disease, they become severely dehydrated and can even die.
Answer:
B-B. Gymnosperms are placed among Dicotyledons
