1 كتب إلكترونية بواسطة BELHASSAN DR KALTOUM BELHASSAN
BELHASSAN DR KALTOUM BELHASSAN: POEMS TO SAVE WATER ON EARTH
Earth is covered 70 percent by water. The total amount of water in the world is approximately 1.4 billion km of which 97.5 percent is saltwater, occupying 1, 351, 000, 000 km Freshwater lakes and …
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