The land on the earth is divided into six large pieces and many small pieces by the ocean. The larger land is called a continent, and the smaller land is called an island. The mainland and its nearby islands are collectively called the mainland. There are seven continents in the world, in descending order: Asia, Africa, North America, South America, Antarctica, Europe and Oceania.

The vast oceans on the earth are connected as a whole. People used to divide the ocean into four parts, namely, the Pacific Ocean, the Atlantic Ocean, the Indian Ocean and the Arctic Ocean. China belongs to Asia, so the ocean on the verge is the Pacific Ocean.

Pacific geographical range

Pacific Ocean, north to Bering Strait, north latitude 65 44', south to Antarctica, south latitude 85 33', north latitude 15 1. East to west longitude 78 08', west to east longitude 9910', spanning longitude 177. The length from north to south is about 15900 km, and the width from east to west is about 19900 km. From the coast of Colombia in South America to the Malay Peninsula in Asia, the longest thing is 2 1300 km.

Including the sea, the volume is 7 144 10000 cubic kilometers, but excluding the sea, the volume is 696 189000 cubic kilometers. The average depth including the sea is 3939.5m, excluding the sea, which is 4187.8m. The known maximum depth is11033m, which is located in the Mariana Trench.