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Planet Earth (The continents that we currently live in used to be only one…
Planet Earth
The continents that we currently live in used to be only one continent, Pangea
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Planet Earth and other planets, form by the collision of smaller bodies, this bodies were orbiting the sun and colliding with each other, as they got bigger they were heated by the impact of the bodies.
This period of heated lasted 100 million years, a lot of energy was released
Earth has a inner core, outer core made of liquid iron, and a mantle of rock,
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Earth has a magnetic field, because it core has liquid metal and it moves
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Seismology is the best method to study the structure of the earth, earthquakes can be very destructive but they offer a lot of information about earth.
Waves of motion tells us about planet interior, and the crust
In the early stages of earth, the ocean water were more acidic, the atmosphere co2 hydrogen chloride
The greenhouse effect help earth maintain is current temperature by reflecting the light from the sun.
Life could not evolve on the land, but on the ocean organism could use photosynthesis to survive.
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Earth and water
The earth has ocean and water and atmosphere,
Because the earth has a great position related to the distance from the sun it can hold water is not to cold or hot
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The amount of ocean water covering the earth is 75%,
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