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Earth

en.wikipedia.org/wiki/Earth

Earth is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical ...

What Is Earth? | NASA

www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-earth-58.html

Planet Earth has an abundance of water that makes it unique and perfect for life to exist.

Planet Earth: Facts About Its Orbit, Atmosphere & Size - Space.com

www.space.com/54-earth-history-composition-and-atmosphere.html

Dec 11, 2014 ... Earth is the only planet known to support life. Learn about Earth science facts and the planet's interior composition, surface and atmosphere.

Earth - Educational facts and history of the planet Earth.

nineplanets.org/earth.html

Earth is the third planet from the Sun and the fifth largest: Planet Profile. orbit: 149,600,000 km (1.00 AU) from Sun diameter: 12,756.3 km mass: 5.972e24 kg ...

Planet Earth, Planet Earth Information, Facts, News, Photos - Science

science.nationalgeographic.com/science/space/solar-system/earth/

Get information, facts, photos, news, videos, and more about planet Earth and its role in the solar system from National Geographic.

Earth Facts - Interesting Facts about Planet Earth - Space Facts

space-facts.com/earth/

Earth is the third planet from the Sun and is the largest of the terrestrial planets. The Earth is the only planet in our solar system not to be named after a Greek or ...

www.ask.com/youtube?q=What Is The Earth?&v=nt6ab7BTlgE
Aug 28, 2014 ... Nat Geo list of reasons Earth might be useful to other life forms: .... There are 4 million views but there are only 1066 people on earth scammer ...

What is Earth made of? | Cool Cosmos

coolcosmos.ipac.caltech.edu/ask/58-What-is-Earth-made-of-

The Earth is made out of many things. Deep inside Earth, near its center, lies Earth's core which is mostly made up of nickel and iron. Above the core is Earth's  ...

What is the Earth's axis? | Reference.com

www.reference.com/science/earth-s-axis-99326407762d08b1

The Earth's axis is positioned at an angle of 23.5 degrees away from the plane of the ecliptic. An objects axis, or axial tilt, also referred to as obliquity, is the angle ...

Planet Earth - Universe Today

www.universetoday.com/14367/planet-earth/

May 26, 2016 ... In addition to being the birthplace of humanity and the cradle of human civilization, Earth is the only known planet in our Solar System that is ...

Answers
the world
Globally, the 20th century was marked by: (a) two devastating world wars; (b) the Great Depression of the 1930s; (c) the end of vast colonial empires.