Question

फोर करैक्टेरिस्टिक्स ऑफ ओसियन​

Answer 1

Answer:

An ocean is a body of water that composes much of a planet's hydrosphere.[1] On Earth there is the world ocean, a system of five oceans. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Ocean.

Saline seawater covers approximately 361,000,000 km2 (139,000,000 sq mi) and is customarily divided into several principal oceans and smaller seas, with the ocean as a whole covering approximately 71% of Earth's surface and 90% of the Earth's biosphere.[4] The oceans contains 97% of Earth's water, and oceanographers have stated that less than 20% of the oceans have been mapped.[4]