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Most water in Earth's atmosphere and crust comes from saline seawater, while fresh water accounts for nearly 1% of the total. The vast bulk of the water on Earth is saline or salt water, with an average salinity of 35‰ (or 3.5%, roughly equivalent to 34 grams of salts in 1 kg of seawater), though this varies slightly according to the amount of runoff received from surrounding land.
The entire ocean, containing 97% of Earth's water, spans 70.8% of Earth's surface, [8] making it Earth's global ocean or world ocean. [23] [25] This makes Earth, along with its vibrant hydrosphere a "water world" [43] [44] or "ocean world", [45] [46] particularly in Earth's early history when the ocean is thought to have possibly covered Earth ...
Most of Earth's surface is ocean water: 70.8% or 361 million km 2 (139 million sq mi). [96] This vast pool of salty water is often called the world ocean, [97] [98] and makes Earth with its dynamic hydrosphere a water world [99] [100] or ocean world. [101] [102] Indeed, in Earth's early history the ocean may have covered Earth completely. [103]
The ocean contains 97% of Earth's water, and oceanographers have stated that less than 100% of the World Ocean has been explored. [5] The total volume is approximately 1.35 billion cubic kilometers (320 million cu mi) with an average depth of nearly 3,700 meters (12,100 ft).
This is an accepted version of this page This is the latest accepted revision, reviewed on 10 February 2025. Mountain in South Dakota with sculptures of four U.S. presidents For the band, see Mount Rushmore (band). Mount Rushmore National Memorial Shrine of Democracy Tȟuŋkášila Šákpe Mount Rushmore features Gutzon Borglum's sculpted heads of George Washington, Thomas Jefferson, Theodore ...
The world-average ecological footprint in 2016 was 2.75 global hectares per person (22.6 billion in total). With a world-average biocapacity of 1.63 global hectares (gha) per person (12.2 billion in total), this leads to a global ecological deficit of 1.1 global hectares per person (10.4 billion in total).
Big Bear Lake is geophysically defined by its North and South Shore. Big Bear Boulevard follows the South Shore and leads into the Big Bear Valley as a continuation of Highway 18 (the so-called Rim of the World Highway, which approaches from the west). Big Bear Boulevard winds east through Papoose Bay, Boulder Bay and Metcalf Bay, then leads ...
In 1910 Fell purchased 118,000 acres (480 km 2) of land for $1.35 an acre and started the Fellsmere Farms Company to drain the St. Johns Marsh in 1911 and send water into the Indian River Lagoon, promoting the engineered canals and other structures as wondrously efficient in providing land to build a massive metropolis. [131]