Ammonia is a compound made up of one nitrogen (N) atom and three hydrogen (H) atoms. It is a colorless gas with a pungent smell and is found in nature or can be made through a chemical reaction.

Because it is rich in nitrogen, ammonia is widely used as a fertilizer to help plants grow. It is also used in cleaning products because of its ability to break down dirt and grime. However, it can be dangerous if not used properly and should be handled with care.