Afriend says that it does not matter what happens in other ecosystems and that you won't be affected because you live in the city. do you think your friend is right? justify your answer.

No my friend is not right. If something huge happenstance the ecosystem we have to suffer with it. So let’s say a species died that would mean whatever that species did would die with it. An example of this is bees. If bees die pollinating and everything else they do will not happen. And where does your city get your resources? The ecosystem also known as outside. So if suddenly trees stopped in the ecosystem well good luck in your city.

Geologists use  seismic waves to  locate an earthquake's epicenter.. 

"pacesetter of the south," comma inside the quotes