1-Weird but true facts: More than 70 percent of the Earth’s surface is covered by the ocean.
4-Do you think most of the oxygen comes from trees? The ocean produced 70% of our planet's oxygen.
5-One of the world's largest oceans, which contains 25000 islands, is the Pacific Ocean.
7-For thousands of years, the ocean has been used for transportation and trade.
8-Have you ever considered how deep the ocean is? Almost 12100 feet