Air pollution is a horrible thing because people are polluting the environment, we can stop this by shutting down most of the coal fired power plants and lowering how much gases and other harmful things we put into the environment. Polluting the environment is hurting not only us but also the plants and animals. The reason why polluting the environment is bad is because it is putting holes in the ozone layer and is causes people to have major health problems like with their breathing. There are many different ways people can pollute the air. Smog is one of them also, greenhouse gases and carbon dioxide are all causes of air pollution.
        Smog is a major cause of air pollution. Smog is a mixture of fog and smoke or other airborne pollutants such as exhaust fumes. Smog comes from vehicles, machinery, factories, and paints. There are also many ways that we can prevent sit.We can cut back on how often we drive our cars or we can use alternative fuels. We can also stop using fossil fuels as much as we do and that will help out a lot .
        Greenhouse gases are warming up our environment which could lead to global warming. Greenhouse gas is gas that gets trapped. When it lets off heat into the environment that is what leads to the warming of the earth or what we call global warming. Global warming is when earth’s temperatures rise above average.This happens when the greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature.We can stop this by reducing the energy we use at home by turning off lights when you are not in the room.
        Carbon dioxide is colorless and odorless and is not bad for the environment but too much is. It plays many important roles in the environment. Without it there would be no photosynthesis and without photosynthesis there would be no plants therefore no oxygen for us. Many people think that it is bad for the environment because it is a greenhouse gas required by the earth to maintain normal temperatures and sustain life. Carbon dioxide is not bad but too much of it can cause radiation from the sun to get stuck between the atmosphere causing global warming.
         In short, There are many things that people do to cause air pollution but there is also many ways that you can prevent it. Also, air pollution has negative effects on the environment.

http://www.livestrong.com/article/170951-the-causes-effects-solutions-for-air-pollution/

    

Most people usually enjoy being social, and they always try to find ways to talk to others so that they can stay connected. There has been many kinds of technology in the past to help people with this like the telephone, then the cell phone, and now social media sites on the internet. These sites have shown that they can have both positive and negative effects on everyone that uses them.

                One of the best effects that social media sites can have on its users is actually provide what people want to use it for, which is to communicate with friends and family. Social media sites allow for this because everyone can join for free and almost anyone can learn to use them. When people use these sites, communication becomes much easier. Not only can people have private conversations between each other, but they can also have public communication to all of their contacts for giving news of important information and events in short period of time.

                On the other hand, people can also sometimes get bad effects from social media sites. The most common negative effects is wasting too much time on social media sites. It is not bad to use media sites if there is nothing else to do, however, some people can be addicted to it and spend too much time on the sites even if they actually have work to do. Social media sites can be a source of bad language or information that is not good for children or teenagers who try to use media sites. Older users can put bad language or other bad things that the kids should not see.

                Aside from the effects that are clearly positive or negative, there some effects that are undecided if they are good or bad. Some people will put information about politics on those sites, and this can be useful if it is updates about changes in the government, but politicians can be hurt from other politicians’ criticizing.

                In short, social media sites can be a negative or positive experience for the people that use it. As long as people are still benefiting from the site, then we should not change that part of it. However, it should be a priority to fix the parts of social sites that can be harmful or can have negative effects. That way, as many users as possible will enjoy using social media sites.

http://smallbusiness.chron.com/negative-effect-social-media-society-individuals-27617.html

    

Over the years, leisure time activities have really changed. People used to do very simple things like play outside, play cards or board games, and play sports. Nowadays, most of the leisure activities that people are interested in are involved with a TV or a computer. Videogame are now very popular for several reasons including the types of games, the ways to play with friends, and time and place that they can play.

There were many different kinds of card games and board games in the past, and people still use them today, but most children and teenagers are more interested in videogames because of how the games are related to movies that they see, like Batman or Ironman. Some of the other games can have different stories that no one has heard before. In a way, video games can be used like kids used story books in the past.

Another main reason to why videogames have become so popular is that it is the new way of playing with friends. Many kids that play videogames have access to the Internet on their videogame machine, and they want to use that to connect with other people that are playing the same game. With that access to Internet, they can basically send invitations and other messages to tell others to join with their game or even just to talk on the microphone.

Finally, people want videogames to change the normal times and places that people can play games. Videogames can be used anywhere if they are the portable type, so people can play one them if they are bored and have nothing else to do. This way people can have fun with their games that they play at home in other places, too.

In short, there are many reasons to play videogames, including the types of games that are available, how people can play with their friends, and also to change the playing environment. Videogames make leisure time a very fun time if someone is alone or with friends.

http://www.lifehack.org/articles/lifestyle/10-reasons-why-adults-who-play-video-games-are-happier.html