1 pound is 454 grams, so it will take about 23 bottles of weight 20 grams. or about 25 PET 500ml (still) bottles of weight 18 grams. or about 22 PET 500ml(sparkling) bottles of weight 20.7 grams. to make one pound. Views Â· View Upvotes.
Map of Pangaea with modern continental outlines. Pangaea or Pangea ( /pÃ¦nËdÊiËÉ/) was a supercontinent that existed during the late Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335 million years ago, and it began to break apart about 175 million years ago. In contrast to the present Earth and its distribution of continental mass, much of Pangaea was in the southern hemisphere and surrounded by a superocean, Panthalassa.
Answered by The Community. Making the world better, one answer at a time. About 250 million years ago, all current continents formed one supercontinent called Pangaea (from Ancient Greek, meaning Entire Earth) surrounded by one ocean, Panthalassa (Entire Sea).ow, Pangaea is the most recent and most well-known supercontinent, but due to ongoing continental drift, supercontinents form all the time. 600 million years ago, there was Pannotia, and 1,1 billion years ago, there was Rodinia, etc.