2007-01-17 10:39:52 · 16 answers · asked by Bernadette A 1 in Science & Mathematics ➔ Astronomy & Space
Earth (IPA: /ˈɜː(r)θ/, often referred to as the Earth, Terra, the World or Planet Earth) is the third planet in the solar system in terms of distance from the Sun, and the fifth largest. It is also the largest of its planetary system's terrestrial planets, making it the largest solid body in the solar system, and it is the only place in the universe known to humans to support life. It is also the densest planet in the solar system. Widely accepted scientific evidence indicates that the Earth was formed around 4.57 billion years ago[1] and its natural satellite, the Moon, was orbiting it shortly thereafter, around 4.53 billion years ago.
The outer surface is divided into several tectonic plates that gradually migrate across the surface over geologic time spans. The interior of the planet remains active, with a thick layer of convecting yet solid mantle and an iron core that generates a magnetic field. Its atmospheric conditions have been significantly altered by the presence of life forms, which create an ecological balance that modifies the surface conditions. About 71% of the surface is covered in salt-water oceans, and the remainder consists of continents and islands.
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2007-01-17 21:00:07 · answer #1 · answered by catzpaw 6 · 0⤊ 0⤋
Earth is a ball of rock mostly covered by water and wrapped in a thin,protective layer of gases - the air. The outer layer of Earth is called the crust. Under the crust is the mantle, made of molten rock that moves very slowly.More than two thirds of Earth is covered by oceans, yet there are vast areas of burning desert, mountains, hot, steamy rain forests and an exotic array of animal life.
2007-01-18 00:42:36 · answer #2 · answered by skeetejacquelinelightersnumber7 5 · 0⤊ 0⤋
Earth.
2007-01-17 18:42:58 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Earth is made up of the remnants of a super nova that exploded many billions of years ago.
2007-01-18 07:43:54 · answer #4 · answered by Billy Butthead 7 · 0⤊ 0⤋
Earth, the planet? Well, technically, it's made of all the elements... and has an molten iron/nickel core...
Or perhaps you mean soil? Soil has two major components- decomposed organic matter, and weathered bedrock.
2007-01-17 18:43:47 · answer #5 · answered by chpsalumni 2 · 1⤊ 0⤋
Rock and melted lava
2007-01-17 18:44:02 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It's made of ........ earth.
2007-01-17 23:06:39 · answer #7 · answered by shrabikhababi 2 · 0⤊ 0⤋
75% water, and 25% differnt forms of rock
2007-01-17 18:48:00 · answer #8 · answered by triplesixdj 2 · 1⤊ 1⤋
Dirt, rocks, plants, water, but mostly dirt and water.
2007-01-17 20:50:20 · answer #9 · answered by Andrea luvs u...maybe...lol 3 · 0⤊ 0⤋
Stuff
2007-01-17 18:56:59 · answer #10 · answered by AD 4 · 0⤊ 0⤋