Harmful substances in farming

Weedicides pesticides are some harmful chemical.In farming also excessive use of fertilizers cause Eutrophication.All these can be harmful for humans, also for useful oraganism which are helpful for growth of crops.

if u need the answers look it up on google youll find it trust im just saying this incase no one out : )

i think it's the first one because doctors aren't the ones who get rid of the old needles. most of them time it's not even doctors who give you shots, it's nurses.