Did You Know, Where's the Center of Google Earth?

Did You Know, Where's the Center of Google Earth?

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Happy Earth Day ~ Hudson Valley Geologist

Earth Astronomical symbol of WorldThe particular Blue Marble, the first full-view photograph of the planet, was captured by astronauts en route to the Moon in 72

Earth is the 3 rd planet from the sunlight and the only astronomical thing known to harbor life. Based on radiometric dating and other sources of evidence, World formed over 4. 5 billion years ago. Earth's gravity treats other objects in space, especially the Sun and the Celestial body overhead, Earth's only natural satellite television. Earth revolves around the Sun in 365. 26 days, a period known as an Earth year. Throughout this time, Earth revolves about its axis about 366. 26 times.

Earth's axis of rotation is tilted with respect to its orbital plane, producing seasons in the world. The gravitational interaction between Earth and the Moon causes sea tides, stabilizes Earth's alignment on its axis, and gradually slows its turn. Earth is the densest planet in the Solar System and the most significant of the four terrestrial planets.

Earth's lithosphere is divided into several firm tectonic plates that migrate across the surface over periods of many millions of years. About 71% of Earth's surface is covered with water, mainly by oceans. The 29% is land consisting of regions and islands that collectively have many lakes, waterways and other sources of water that contribute to the hydrosphere. Virtually all Globe's polar regions are protected in ice, like the Antarctic ice sheet and the sea ice of the Arctic ice pack. Globe's interior remains active with a solid iron interior core, a liquid exterior core that generates the Earth's magnetic field, and a convecting mantle that drives plate tectonics.

Within the first billion years of Earth's history, life appeared in the seas and began to influence the Earth's atmosphere and surface, leading to the proliferation of aerobic and anaerobic organisms. Some geological evidence indicates that life may have arisen as much as 4. 1 billion dollars years ago. Since then, the mixture of Globe's distance from the Sunshine, physical properties, and geological history have allowed life to evolve and thrive. In the great the Earth, biodiversity has eliminated through long periods of expansion, occasionally punctuated by mass extinction events. Over 99% of most species that ever lived on Planet are extinct. Estimates of the number of varieties on the planet today vary extensively; most species have not been described. Over 7. 6 billion humans live on Earth and depend on its biosphere and natural resources for their your survival.[40] Humans are suffering from diverse societies and civilizations; politically, the world has about 200 sovereign says.

The present day English word Planet developed from a large variety of Middle English forms, which derived from a vintage English noun most often spelled eorðe. That has cognates in every Germanic language, and their proto-Germanic root has been reconstructed as *erþō. In its earliest appearances, eorðe was already being used to convert the many senses of Latin terra and Ancient greek language γῆ (gē): the ground, their soil, dry land, your world, the surface of the world (including the sea), and the world itself. As with Terra and Gaia, Earth was a personified goddess in Germanic paganism: the Angles were listed by Tacitus as among the devotees of Nerthus, and later Norse mythology included Jörð, a giantess often given since the mom of Thor.

Originally, earth was written in lowercase, and from early Center English, its definite sense as "the globe" was expressed as the world. By Early Modern British, many nouns were made a fortune, and the earth became (and often remained) the Earth, particularly when referenced alongside with other heavenly body. More recently, the name is sometimes simply given as Earth, by example with the names of the other planets. House styles now vary: Oxford spelling acknowledges the lowercase form as the utmost common, with the capitalized form an acceptable version. Another convention capitalizes "Earth" when appearing as a name (e. g. "Earth's atmosphere") but writes it in lowercase when preceded by the (e. gary the gadget guy. "the atmosphere of the earth"). It almost always appears in lowercase in colloquial expressions such as "what on earth are you doing? ".

Happy Earth Day u0026 Happy SpringFling! Where the Goodwill Goes

Full Earth, Closeup Digital Art by Nasa Earth Observatory/spl

Life on Earth