We ________ ________ _________ __________, but in fact it is an ocean planet. __________ ________ ______ of the living space on earth ________ ___________ in the oceans. ___________ beneath the waves are mountain ranges __________ __________ ___________ the Himalayas and _________ _________ ________ ________ ______ _________ _________ the Serengeti in Tanzania.

The oceans support many different kinds of marine life _________ _________ __________ ________ ___________. We _________ _________ ___________some of them, ________ __________ sea turtles, whales and seals, but many other life forms in the oceans ________ ________ ________ ________ _________ ________ _____________.