The sea we know

The Earth’s surface is covered by 70% of ocean while the land just accounts for 30%. Do you know that under the deep blue sea, we have not yet discovered a giant treasure? We have there a mystery world build-up by castles of secret. So how much do you know about our great blue friend?

Why is the sea salty? Why is the seawater blue? Why is it always moving? What are marine creatures?...

Are you excited to know it now? Let’s come with me, we are going to explore together!