"locals" or local residents"? and other 3 questions~THX!:) I've written an essay and here's a paragraph from it. I've got 4 questions for that when revising. The overdevelopment of tourism can be a great threat to the sustainable development of the country. (Q1. Is there a better word to replace development? Progress? ) It is no striking news anymore when we hear that some scenic spots are filled up with a tremendous number of tourists (Q2. Does "an amazing number" sounds better or not?), sometimes even up to ten times of the local population. The locals surely reap benefits from this, but in the long run, they must bear great loss.(Q3. Can I say "locals"? Or is "local residents" more correct? ) It should be noticed that what comes with the battle against pollution is more than financial cost. Natural beauty might be destroyed with irretrievable negative influences. （Q4. My Chinese friend says that the second last sentence is exaggerated and makes her confused. What do you think as native speakers?) Thanks soooooo much for your kind help! !