1) How much percent of the earths surfaces does the Oceans cover? a) b) c) 2) What causes the waves on the Oceans surface? a) b) c) 3) How much percent of the earths living species does the Ocean contain? a) b) c) 4) How many Oceans are there all together? a) There are five main Oceans all together. b) There are four main Oceans all together. c) There are three main Oceans all together. 5) What type of dissolved solids does the Ocean contain? Please choose two correct answers for this question. a) b) c) 6) What is the largest Ocean in the world? a) b) c)

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