Hi , can someone me with question three

So for example you could say : I think that tropical rainforests are most important for medicinal purposes.through plants we can find new substances that could potentially cure and help relieve illnesses furthermore if mutation occurs it will be hard for old antibiotics and other medicine to work and that could cause huge disaster so the range of plants could potentially hold what we need . Hope I helped x

"pacesetter of the south," comma inside the quotes