LE CYCLE DE L’EAU

Jul 22, 2014

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LE CYCLE DE L’EAU. Walter GUYOT. . LA TERRE La planète bleue .  71 % de la surface de la Terre est recouverte d'eau. . Quelques chiffres . Eau salée : 97,2 % OCEANS ET MERS. Eau douce : 2,8% CALOTTES POLAIRES GLACIERS : 2,1 % EAUX SOUTERRAINES : 0,6 % LACS et COURS D'EAUX : 0,02 %

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LE CYCLE DE L’EAU

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LE CYCLE DE L’EAU Walter GUYOT
. LA TERRE La planète bleue 71 % de la surface de la Terre est recouverte d'eau.

Quelques chiffres Eau salée : 97,2 % OCEANS ET MERS Eau douce : 2,8% CALOTTES POLAIRES GLACIERS : 2,1 % EAUX SOUTERRAINES : 0,6 % LACS et COURS D'EAUX : 0,02 % ATMOSPHERE : 0,01 %
Éclipse de Soleil

Rayonnement terrestre vers l’espace Rayonnement solaire réfléchit Rayonnement solaire Rayonnement réémise vers l’espace Rayonnement terrestre absorbé Gaz à effet de serre Rayonnement réémise vers la surface

Glace Solide Liquide Vapeur Gazeux

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