What are the most surprising facts about the ocean?

• If all the ice melted, sea levels would rise by 216 feet or 65.84 meters.
• We have a better map of Mars than the ocean.
• The ocean is home to about 80 percent of all life.
• We have explored less than 5% of it.
• There's enough gold in the ocean for each of us to have 9 pounds!
• The longest mountain range on the planet is underwater and is 10 times longer than the Andes.
• The Pacific Ocean is wider than the moon. (from its widest point: Indonesia to Columbia.)
• One iceberg can supply one million people with drinking water for five years.
• The water at the bottom of the ocean is very hot.
• More people have been to the moon than to Challenger Deep, the deepest place on Earth.
• Most of Earth's volcanic activity occurs in the oceans.
• The world's largest living structure is in the ocean. (The Great Barrier Reef)
• There are 3 million shipwrecks in the ocean.
• The ocean holds more artifacts than all the world's museums combined