SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a trench is forming
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a continental plate is subducting
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new crust is forming
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oceanic crust is subducting
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Detailed explanation-1: -Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle’s convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor. Eventually, the crust cracks.
Detailed explanation-2: -The theory of seafloor spreading explains that molten material moves in at the boundaries between tectonic plates pushing them apart as new oceanic crust is created.
Detailed explanation-3: -Which geological feature would be created based on the directions of the movements of the plates? A subduction zone. The shading in each map represents the distribution of a different type of soil.
Detailed explanation-4: -Rifting is defined as the splitting apart of a single tectonic plate into two or more tectonic plates separated by divergent plate boundaries. The rifting of a continental tectonic plate creates normal fault valleys, small tilted block mountains, and volcanism.