Answer:
According to the core accretion model, initially the dust particles and the interstellar gases were all combined together forming a huge cloud, that eventually gets cooled and these gases got concentrated and became gradually denser.
Due to the increasing density, this cloud got disintegrated under the action of gravity, thereby formed a proto-star. Due to the continuous fusion and gravity effects, a star formed and eventually got burst. It then formed the sun with a disk of substances and matter around it. This rotating disc in due course of time gave rise to the planets that exist today.
This is how the solar system originated according to the core accretion theory.
Answer:
The ocean basins and the continents compose the crust, the outermost layer. Earth's crust is between three and 46 miles (five and 75 km) deep. The thickest parts are under the continents and the thinnest parts are under the oceans.
Hope this helps!!
When there is seafloor spreading, it means that two plates C.)are moving away from each other creating ridges.
<h3>What causes seafloor spreading?</h3>
Seafloor spreading only happens in divergent boundaries between plates which means that the plates are moving away from each other.
When this happens, ridges are created as less-dense material rises from the mantle which leads to land being formed.
Find out more on seafloor spreading at brainly.com/question/870586
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