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The total volume of water on Earth is estimated at 1.386 billion km 3 (333 million cubic miles), with 97.5% being salt water and 2.5% being freshwater. Of the freshwater, only 0.3% is in liquid form on the surface. [ 2][ 3][ 4] Because the oceans that cover roughly 70.8% of the area of Earth reflect blue light, Earth appears blue from space ...
This is a list of capital cities of the United States, including places that serve or have served as federal, state, insular area, territorial, colonial and Native American capitals. Washington, D.C. has been the federal capital of the United States since 1800. Each U.S. state has its own capital city, as do many of its insular areas.
Top 25 water ports by tonnage. This is a list of ports of the United States, ranked by tonnage. [1] Ports in the United States handle a wide variety of goods that are critical to the global economy, including petroleum, grain, steel, automobiles, and containerized goods. See the articles on individual ports for more information, including ...
A map of the United States showing its 50 states, federal district and five inhabited territories. Alaska, Hawaii, and the territories are shown at different scales, and the Aleutian Islands and the uninhabited northwestern Hawaiian Islands are omitted from the map. The United States of America is a federal republic [ 1] consisting of 50 states ...
Do you want to know how the United States is divided into different regions? Check out this comprehensive list of regions of the United States on Wikipedia, where you can find the definitions, classifications, and maps of each region. You can also learn more about the history, culture, and geography of each state, such as Kansas, by clicking on the links in the list.
The inland and intracoastal waterways of the eastern United States. The inland waterways of the United States include more than 25,000 mi (40,000 km) of navigable waters. Much of the commercially important waterways of the United States consist of the Mississippi River System —the Mississippi River and connecting waterways.
Water storage. Water storage is a broad term referring to storage of both potable water for consumption, and non potable water for use in agriculture. In both developing countries and some developed countries found in tropical climates, there is a need to store potable drinking water during the dry season. In agriculture water storage, water is ...
The second largest state, Texas, has only 40% of the total area of the largest state, Alaska. Rhode Island is the smallest state by total area and land area. San Bernardino County is the largest county in the contiguous U.S. and is larger than each of the nine smallest states; it is larger than the four smallest states combined.