EARTH
Earth
is the third planet from the eight planets in the Solar System . Estimated age
of 4.6 billion years . The distance between the Earth to the sun is 150 million
kilometers , round shape with a radius of ± 6,370 km. Earth is the only planet
that can be populated with living things .
Earth
has two kinds of layers , namely internal and external coating layer . Forming
the inner layer is a layer of earth. While the outer layer is the layer that
protects the earth from a meteor or space objects other. In the structure of
the layer in the earth , is divided into three parts , as follows :
1.
The earth's crust is the outer skin of the earth 2. Blanket is a layer that
lies beneath the crust layer. 3. Earth's core, which is composed of molten
material, the main constituent of ferrous metals ( 90 % ), nickel ( 8 % ), and
others. while the outer layer consists of Atmosphere. Atmosphere earth consists
of several layers, including, troposphere, stratosphere, mesosphere,
thermosphere, and ionosphere.
Earth
has one satellite. It is the moon, the moon can be seen at night because of the
sunlight bouncing ynag to earth.
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