Opinion

1.Yes I knew some people had been affected by air pollution. Let me give you an example, in Beijing China, air pollution has biggest negative impact on people's health. Then, most people take a mask when they go outdoor due to air pollution affecting our breath problem and nose and throat problem.

2.In my opinion, maybe everyone thinks people have freedom of choice to do anything except illegal things and one person can't make a different. But I think the cities should persuade people and give them some clearly suggestion to reduce pollution. Everyone should be not allowed to throw trash wherever, we should pick up trash by the way at anytime, use recycling substances, don't waste non renewable resources etc. 

3. There has been a hotly-debate issue that how to use a large piece of undeveloped land in my city. Some people agree that it should be sale for a lot money. The reasons for this is that some houses companies want to build houses and businesses on it. The large profit also would support the city to clean up the river, likewise now almost every family has a car, but it is very hard to park, therefore the land also might be created along parking. However, some people strongly disagree. For the following reasons, they want to sell it to an environmental group for less money. Because this group can plant more trees on and turn it into a nature preserve with hiking trails and camping areas. In my opinion, I agree that plant trees, not build houses. let me tell you why. Firstly environment pollution is biggest problem we need to face now, such as air pollution, water pollution and land pollution. That all more and more serious and have some negative impact on our health. In my experience, this is true because so many factories product many chemical substance such as wasted gas, that is a main SO2 resource and caused acid rain, it is very dangerous to environment, land and water. Furthermore, due to deforestation, the city often is attracted by wind and sand. Urban forest is good for define windy storm and purify the air. If we only want to earn a lot of money don't think about our environment problem, we will spend too much more money to deal with various environment pollution than how much we earn. In conclusion, without a doubt, planting tree is better than building houses on the large piece of undeveloped land in my city.