Search results
Results from the WOW.Com Content Network
Earth has a dynamic atmosphere, which sustains Earth's surface conditions and protects it from most meteoroids and UV-light at entry. It has a composition of primarily nitrogen and oxygen . Water vapor is widely present in the atmosphere, forming clouds that cover most of the planet.
Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies, ranked by total area, including land and water. This list includes entries that are not limited to those in the ISO 3166-1 standard, which covers sovereign states and dependent territories.
Surface area of the brown dwarf CT Chamaeleontis B. 460,000 Mm 2: Area swept by the Moon's orbit of Earth 10 18: 1 square gigametre (Gm 2) 6.1 Gm 2: Surface area of the Sun [94] 10 19 30 Gm 2: Surface area of the star Vega: 10 20 100 Gm 2 10 21: 1 zetta square meter Z(m 2) 1 000 Gm 2: 10 22 11 000 Gm 2: Area swept by Mercury's orbit around the ...
Approximately 71% of Earth's surface, an area of some 361 million square kilometres (139.5 million square miles), is covered by ocean. The average salinity of Earth's oceans is about 35 grams of salt per kilogram of sea water (3.5%).
This list includes all islands in the world larger than 1,000 km 2 (390 sq mi). For size and location reference, the four continental landmasses are also shown. Continental landmasses Continental landmasses are not usually classified as islands despite being completely surrounded by water. [Note 1] However, because the definition of continent varies between geographers, the Americas are ...
At any given time, about 2 × 10 13 tonnes of this is in the form of water vapor in the Earth's atmosphere (for practical purposes, 1 cubic metre of water weighs 1 tonne). Approximately 71% of Earth's surface, an area of some 361 million square kilometres (139.5 million square miles), is covered by ocean.
Square miles should not be confused with miles square, a square region with each side having a length of the value given. For example, a region which is 20 miles square (20 miles × 20 miles) has an area of 400 sq mi; a rectangle of measuring 10 miles × 40 miles also has an area of 400 sq mi, but is not 20 miles square.
In geology, a continent is defined as "one of Earth's major landmasses, ... Greenland, with a surface area of 2,166,086 square kilometres (836,330 sq mi), ...