GEOLOGY

EARTH SCIENCE

TECTONICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In a divergent boundary, plates pull away from each other. This allows cracks to form in the lithosphere. Melted rock can rise through these cracks. When the melted rock cools and hardens, it
A
becomes new lithosphere.
B
becomes a mountain range.
C
sinks back into the mantle.
D
freezes.
Explanation: 

Detailed explanation-1: -A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, earthquakes are common and magma (molten rock) rises from the Earth’s mantle to the surface, solidifying to create new oceanic crust. The Mid-Atlantic Ridge is an example of divergent plate boundaries .

Detailed explanation-2: -Rift Valleys Continental and continental plate divergence results in the formations of rifts. A rift is a dropped zone at the point where the plates are moving apart. As the plates move apart the crust widens and thins, valley and volcanoes begin to form in and around the area.

Detailed explanation-3: -Divergent boundaries in the middle of the ocean contribute to seafloor spreading. As plates made of oceanic crust pull apart, a crack in the ocean floor appears.

Detailed explanation-4: -Divergent boundaries are places where two or more plates move away from each other. These boundaries can be found on continental or oceanic lithosphere . Tensional stress operates between the tectonic plates at a divergent boundary, which causes the lithosphere at these locations to stretch and pull apart.

Detailed explanation-5: -Tensional stress happens at divergent plate boundaries where two plates are moving away from each other. Shear stress is experienced at transform boundaries where two plates are sliding past each other.

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