SCIENCE
EARTH SCIENCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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one plate splits into two distinct plates.
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one plate grinds against another plate.
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two plates separate and move apart from one another.
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two plates meet and collide with one another.
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Detailed explanation-1: -Hot magma rises to the crust’s surface, cracks develop in the ocean floor, and the magma pushes up and out to form mid-ocean ridges. Mid-ocean ridges or spreading centers are fault lines where two tectonic plates are moving away from each other.
Detailed explanation-2: -Answer and Explanation: New oceanic crust forms along mid-ocean ridges at divergent plate boundaries. Mid-ocean ridges are seams in Earth’s crust where magma rises up from the mantle to create new crust.
Detailed explanation-3: -As plates made of oceanic crust pull apart, a crack in the ocean floor appears. Magma then oozes up from the mantle to fill in the space between the plates, forming a raised ridge called a mid-ocean ridge. The magma also spreads outward, forming new ocean floor and new oceanic crust.
Detailed explanation-4: -When two plates are moving away from each other, we call this a divergent plate boundary. Along these boundaries, magma rises from deep within the Earth and erupts to form new crust on the lithosphere. Most divergent plate boundaries are underwater and form submarine mountain ranges called oceanic spreading ridges.
Detailed explanation-5: -Divergent Plate Boundaries At a divergent boundary, tectonic plates move apart from one another. They never really separate because magma continuously moves up from the mantle into this boundary, building new plate material on both sides of the plate boundary.