Question

2. Assertion : When the molten magma cools, it becomes solid. Reason: Rocks thus formed are called Sedimentary Rocks (Select the correct statement) ​

Answer 1

Explanation:

The assertion given is true and the reason behind the assertion is also relevant. Actually sedimentary rocks are those rocks that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. So the cooling or settling of molten magma in the surface of the earth leads to sedimentation

Answer 2

Assertion is the correct statement and reason is wrong statement.

1. Magma is the rock material, which is molten in nature and present under Earth's crust. On coming to the surface, it is called lava. On cooling, this lava forms rock which is called igneous rock.
2. Sedimentary rocks, as evident from their name, are formed from sediments. These sediments come from rivers and on deposition in lakes and oceans along with tightly joining together form rocks.