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Explicati prezenta vietuitorelor din apele de suprafata ale Marii Negre e urgennttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt

Răspuns :

Răspuns:

Marea Neagra are 2 straturi cu apa.Primul strat este cel de la suprafata si este dulce,de aceea aici se afla majoritatea vietuitoarelor fiindca apa este dulce pana la 200m adancime

Explicație: