Answer:
Seafloor spreading results from intense activity in the upper mantle which cracks the crust and pushes it away.
Explanation:
Seafloor spreading is a process that was first noticed by Alfred Wegener and was used by him in his theory of plate tectonics. There are three types of plate boundaries; convergent boundary, transform boundary, and divergent boundary. The last one is the one where seafloor spreading occurs.
The convection currents in the mantle are the process that breaks up the crust and move the tectonic plates, and when there is higher activity than usual at some place it results in break up the crust of an already existing tectonic plate. Basically, magma rises at a higher rate and pushes through the crust, in this case, the oceanic crust, and it manages to gradually break through it and come out on the seafloor. By doing so, the magma and the pressure from below are pushing the two now divided parts of the plate. As the space between the two different parts becomes larger and large the density of the crust becomes smaller and smaller so more and more magma rises through. The magma quickly solidifies on the ocean floor and piles up, thus creating an underwater mountain range known as a mid-ocean ridge.
<span>geosphere is any of the almost spherical concentric regions of matter that make up the earth and its atmosphere, as the lithosphere and hydrosphere.
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The cryosphere<span> is the frozen water part of the Earth system
the Lithosphere is </span><span>the rigid outer part of the earth, consisting of the crust and upper mantle.
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Hydrosphere is </span><span>all of the non-frozen water part of the Earth system
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only had time to help with those ^
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My preferred way to divide complex numbers is to multiply numerator and denominator by the complex conjugate of the denominator
<span>There are 19 States that are completely north of 40 degrees north latitude or otherwise known as the 40th parallel. The states that are north of the 40th parallel are as follows from west to east; Washington, Oregon, Idaho, Montana, Wyoming, North Dakota, South Dakota, Nebraska, Minnesota, Iowa, Wisconsin, Michigan, New York, Connecticut, Rhode Island, Massachusetts, Vermont, New Hampshire and Maine.</span>
If the world temperature rises by two degrees, mountain glaciers and rivers will start to disappear and mountainous regions will see more landslides, as the permafrost that held them together melts away.
For more info: https://www.google.com/amp/s/news.sky.com/story/amp/what-will-happen-as-the-world-gets-warmer-10336299
