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after collisions subsided, the earth's surface was able to cool, but the interior remained hot
Scarps are thought to have been formed when the planet's iron core cooled and contracted, causing the crust to crack. Faults on Earth are the result of tectonic activity.
The mid-atlantic Ridge. There, two tectonic plates are pulling apart, and magma from the mantle rises to the space between these two plates. This magma is cooled instantly, becoming a new ocean floor.
These reverse processes are both part of the water cycle
move less then 2cm a year
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In reality, the interior of the Earth is slowly cooling. In human time perspective, however, this cooling has no impact.
They will stop.
The convection currents will stop
after collisions subsided, the earth's surface was able to cool, but the interior remained hot
Tectonic plates are very large (their highest points form the continents) and constitute the hard crust of the planet. They sit afloat the mantle - molten material called magma - and they are formed from- and return to- magma as parts of the plates are cooled or heated.
Earth
"Smaller terrestrial planets like Mars cooled more rapidly than Earth and lost its internal heat much earlier in their history. Mars experienced plate techtonics very early in its history (4 billion years ago) when it was still hot. When the interior cooled, plate techtonics stopped."- as quoted in Chapter 4 "Plate Tectonics" on page 101 from the textbook The Good Earth: Introduction To Earth Science
"Smaller terrestrial planets like Mars cooled more rapidly than Earth and lost its internal heat much earlier in their history... Mars experienced plate techtonics very early in its history (4 billion years ago) when it was still hot. When the interior cooled, plate techtonics stopped."- as quoted in Chapter 4 "Plate Tectonics" on page 101 from the textbook The Good Earth: Introduction To Earth Science
With some vehicles the fan runs until the engine has cooled down. Give us more info.
If the mantle of the earth interior were to cool down the convection currents and plate tectonics would stop. That would mean that there would be no more earthquakes or volcanoes.