The oceans accounts for 70 % of the Earth's total area , and account for more than 90 % of the Earth's living space . In fact , in the vast ocean world , the ocean affects the climate and weather phenomena on land . A large number of marine animals and plants are an important food source for humans . The oceans sail between continents and countries of the world , and about half of the world's population lives in coastal areas . Therefore , understanding the world's oceans is extremely important to us .Changes in the Earth's oceans will directly affect our lives on land , so we need to discover these changes earlier . In addition to increasing our understanding of the oceans for security and economic benefits , exploring the ocean floor will also satisfy humanity . Curiosity and desire for unknown knowledge .
The oceans accounts for 70 % of the Earth's total area , and account for more than 90 % of the Earth's living space . In fact , in the vast ocean world , the ocean affects the climate and weather phenomena on land . A large number of marine animals and plants are an important food source for humans . The oceans sail between continents and countries of the world , and about half of the world's population lives in coastal areas . Therefore , understanding the world's oceans is extremely important to us .Changes in the Earth's oceans will directly affect our lives on land , so we need to discover these changes earlier . In addition to increasing our understanding of the oceans for security and economic benefits , exploring the ocean floor will also satisfy humanity . Curiosity and desire for unknown knowledge .<br>
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