Hydrosphere
The hydrosphere is the total mass of water on, under, and over the surface of a planet. It is part of physical geography. The oceans, rivers, and lakes are all part of the hydrosphere. Some electricity is made by the hydrosphere.
The total mass of the Earth’s hydrosphere is about 1.4 × 1024 grams, which is about 0.023% of the Earth’s total mass. Around 2 × 1019 grams of this is the Earth’s atmosphere. In addition, 71% of the Earth’s surface, an area of 361 million square kilometers, is covered by ocean.[1]
References
- ↑ World Water Resources: a new appraisal and assessment for the 21st century (Report). UNESCO. 1998. Archived 2013-09-27 at the Wayback Machine
tons or about 1/4400 of Earth's total mass. The oceans cover an area of 361.8 million km2 (139.7 million mi2) with a mean depth of 3,682 m (12,080 ft)
Earth is the third planet from the Sun and the only astronomical object known to harbor life. This is made possible by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its ocean, which covers 70.8% of Earth's crust. The remaining 29.2% of Earth's crust is land, which is predominantly located within Earth's lan
Earth…
Everything we examined (2) — 1 independent source
This check searched the claim as stated. It did not run a separate search for evidence against it.