Answer:
Option (4)
Explanation:
Assimilation is defined as the process by which the new magma is produced from the previously existing magma when interacts with the surrounding host rock. This process alters the original composition of the magma. This generally takes place when the magma reacts with the wall rocks, and due to the high temperature, there incorporates other minerals and substances that are easily melted and mixed with the magma.
Thus, the correct answer is option (4).
Answer:
I believe the answer is true.
Explanation:
Answer:
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Answer:
Convection in the asthenosphere.
Explanation:
Convection in the asthenosphere
Heat which is present in the Earth maintain the malleability of the asthenosphere , and hence provides lubrication to the Earth's tectonic plates for movement .
The convection current that is generated in the asthenosphere , tries to push the magma upward via the vents that are present in the volcanoes and thereby spreads and create a new crust .
And this generates a hotspots on the Earth's crust .
