4 look at the blog again. find two verbs with up or down. what do they mean?

1)The most important of the invention is a computer,television,electricity,telephones,cars,airplanes,radio, etc.
2)Yes,I love to play sports,and I'm really very good at it since early childhood I was involved in various sports
3)To me it is very fun,I sociable and cheerful person,I can find all of the shared language,and we never get bored
4)Teenagers become adults,when they begin to think like adults and disappears opposition to all children
5)Environmental problems arise because of the increasing number of cars on the roads, waste plants, millions of felled trees, the destruction of natural habitats, polluted rivers and the sea. 
6)I would like to visit Mecca is the Holy city of the Muslims,where the main mosque.

Air pollution problems have become one of the problems of the modern world. More and more people are suffering from water and air pollution. Likewise, the nature suffers from air pollution. The reasons for such a lot of environmental problems, such as: increasing the number of cars on the roads, factories, waste, millions of felled trees, the animal life, polluted rivers and seas. Fortunately, there are plenty of opportunities to stop these problems. If everything will take care of the planet and does not pollute the nature and many problems can be solved.