environment

Bardzo proszę o sprawdzenie, niedługo mam egzamin pisemny, a jeszcze nad wieloma rzeczami musze popracować, dlatego zależy mi na czasie. Z góry dziękuję.
People are not aware of how great damage they do to the environment. First of all, they destroy, cut down forests and throw there rubbish away. For instance, electrical devices such as monitors, radios and computers. They emit to the air harmful and chemical substances which may badly affect people’s and animals’ life. What is more, because of deforestation people damage the only source of oxygen, the substance which is necessary for people to breathe. Moreover, trees are responsible for the air filtration. Thanks to them people breathe fresh, free from pollution and dust air. As far as polluting is being concerned, people do not realize how much fumes is emitted to the atmosphere. Therefore, instead of commuting by cars people should use public transport. In consequence, they would protect ozone layer from atrophy, the process caused by excessive damage caused to air. The next adverse effect of people’s actions is the greenhouse effect. The phenomenon badly affects people’s life , influences farming by changing the duration of seasons and, consequently, destroys world’s economy. People should maintain certain actions to their life in order to diminish the results of their harmful to the environment activities. For example recycle, start using public transport and plant more trees than is being cut. In conclusion, humans should take great care of what they do to nature.

People are not aware of 'how'(to jest zle slowo, masz tutaj polska kalke) great damage they do to the environment. First of all, they destroy (ale co? musisz napisac) , cut down forests and throw 'there' (w zlym miejscu, moze isc na koncu zdania) rubbish away.
For instance, electrical devices such as (tutaj trzeba dodac TV) monitors, radios and computers (ale to nie jest zdaniem, musisz to inaczej ujac).
'They' (nie latwo wywnioskowac do kogo? czego sie odnosisz? czy do ludzi czy do electrical devices) emit INto the air harmful and chemical substances which may badly affect 'people’s and animals’ life' (cos mi sie to nie za bardzo poboda - tak nikt nie powie - lepiej ...the lives of peoples and animals). What is more, because of 'deforestation' (ale nie wytlumaczylas co to jest) people damage the only source of oxygen, the substance which is necessary for people to breathe. Moreover, trees are responsible for 'the' (niepotr) air filtration. 'Thanks to them' (to jest za bardzo po polsku - poszukaj inne slowa) people breathe fresh, 'free from pollution' (mamy slowo 'unpolluted') and 'dust air' (nie, nie tak, mamy 'dust-free air'). As far as 'polluting' (daj rzeczownik) is 'being' (niepotr) concerned, people do not realize how 'much fumes is' (to mi sie nie za bardzo podoba - jakos to zmien) emitted INto the atmosphere. 'Therefore' (nie, to jest zle slowo tutaj, bo co masz na mysli, to jest to, zeby temu zapobiec ...in order to save the atmosphere...cos takiego), instead of commuting by cars people should use public transport. 'In consequence' (nie, zle okreslenie, tutaj daj 'consequently), they would protect (przedimek) ozone layer from atrophy, the process caused by excessive damage 'caused' (niepotr) to air.
The phenomenon badly affects people’s 'life' (people to jest wiecej jak jedna osoba, tutaj musi byc l. mnoga - 'lives') , influences farming by changing the duration of (przedimek) seasons and, 'consequently' (zmien to na inne slowo, np. SO), destroys (przedimek) world’s economy. People should 'maintain' (zle slowo) certain actions 'to' (zle slowo, kalka z polskiego, tutaj IN) their 'life' (l. mnoga) in order to diminish the results of their 'harmful' (zla czesc mowy) to the environment. 'activities' (niepotr). For example (kto? co? musisz napisac) recycle, start using public transport and plant more trees than 'is' (to musi zgadzac sie z 'trees'-l. mn) being cut. In conclusion, humans should take great care of what they do to nature BECAUSE...dokoncz to zdanie...)