Incalzirea globala1 liliesti baicoi
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Transcript of Incalzirea globala1 liliesti baicoi
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Pamantul este al celor ce urmeaza.Sa le oferim si lor aceleasi sanse pe care le-
am primit si noi.
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Reprezinta un complex de fenomene care au schimbat calitatea aerului, a apei, a mediului inconjurator.
Poluarea este rezultatul dezvoltarii activitatilor economice si industriale, rezultand deseuri, care, prin depozitare sau evaporare, polueaza aerul, apa, solul.
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Cauze Efecte
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materiile chimice reziduale deseurile industriale si menajere gazele de esapament, zgomotul
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Fiecare lucru care incalzeste atmosfera, dauneaza globului.
Mancarea sintetica pe care o mancam nu face decat rau.
Daca mancam natural creste interesul pentru natura si pentru terenurile arabile care pot da Pamantului lucrul de care are nevoie cel mai mult: Oxigenul.
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Plantele si copacii absorb dioxidul de carbon si elibereaza oxigen, acesta fiind folosit de om. In ultima perioada, zonele pure din natura incep sa dispara odata cu aparitia autostrazilor, fabricilor si oraselor.
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Din diferite cauze au loc numeroase incendii care distrug paduri intregi.
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Cauze ale incendiilor:
temperaturile foarte ridicate;
focul lasat nesupravegheat;
turistii care lasa in urma lor un dezastru ecologic;
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Din cauza poluarii apelor si defrisarii padurilor multe animale isi pierd viata.
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Toate acestea se intampla deoarece oamenii nu se gandesc la consecintele faptelor lor.
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Topirea ghetarilor de la poli Schimbarea climei Cresterea temperaturii Distrugerea stratului de ozon care protejează
planeta de radiatii Cresterea precipitatiilor
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Protejeaza viata pe pamant deoarece absoarbe radiatiile ultraviolete-B emise de soare.
Este localizat la o distanta de 10-15 km de suprafata pamantului si contine aproximativ 90% din ozonul atmosferic.
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PAMANTUL ARE NEVOIE DE NOI!