One Question Per PagefalsefalseWhich is the deepest ocean in the world?4What's the biggest species of whale?3How big is the blue whale?5How long do sperm whales live?1How much does a blue whale's heart weigh?2https://339efcb25eb75e967b0d-ff8eeadd950d51fd1fc939dca75b3973.ssl.cf1.rackcdn.com/assets_green.swf