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The remaining 29.2% of Earth's crust is land, most of which is located in the form of continental landmasses within Earth's land hemisphere. Most of Earth's land is somewhat humid and covered by vegetation, while large sheets of ice at Earth's polar deserts retain more water than Earth's groundwater, lakes, rivers and atmospheric water combined.
Raleigh ( / ˈrɑːli /; RAH-lee) [8] is the capital city of the U.S. state of North Carolina and the seat of Wake County. It is the second-most populous city in North Carolina, after Charlotte. Raleigh is the tenth-most populous city in the Southeast, the 41st-most populous city in the U.S., and the largest city of the Research Triangle metro ...
The Local Group is located on the outer edge of the Virgo Supercluster. Laniakea Supercluster: 160 Mpc 4.94×10 21: 21.69: A group connected with the superclusters of which the Local Group is a part. Comprises roughly 300 to 500 galaxy groups and clusters, centred on the Great Attractor in the Hydra–Centaurus Supercluster.
It is mainly located in the lower portion of the stratosphere from about 15–35 km (9.3–21.7 mi; 49,000–115,000 ft), though the thickness varies seasonally and geographically. About 90% of the ozone in Earth's atmosphere is contained in the stratosphere. The ionosphere is a region of the atmosphere that is ionized by solar radiation.
North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), representing approximately 16.5% of the Earth 's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia and Africa, and the fourth-largest continent by population after Asia, Africa, and Europe.
23°N 13°E. / 23; 13. The Sahara ( / səˈhɑːrə /, / səˈhærə /) is a desert spanning across North Africa. With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic.
The Philippines is an archipelago that comprises 7,641 islands, [8] and with a total land area of 300,000 square kilometers (115,831 sq mi), it is the world's fifth largest island country. [2] [3] [9] The eleven largest islands contain 95% of the total land area. The largest of these islands is Luzon at about 105,000 square kilometers (40,541 ...
The Global Positioning System ( GPS ), originally Navstar GPS, [2] is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. [3] It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near ...