Can we sruvive without the ocean?

Can we survive without the ocean? By Jordan Did you know that if the ocean was gone rivers and lakes would also go. So without the ocean we would dehydrated from not having water. we can not survive because about 70% of the air we breath is made by the oceans plantation (coral reef).We can not survive because the ocean actually absorbs carbon dioxide from the atmosphere and slow´s the impact of climate change! Personally I think we would not survive because the ocean is the world's life support system and we would die from dehydration if the ocean died. The ocean is the most important part of the world because without it our civilization would not be the same, the Earth would be just a dry rock. this is only some of my report.