Civil Engineering - Building Materials - Discussion

Discussion Forum : Building Materials - Section 1 (Q.No. 31)
31.
Gniess is obtained from
igneous rocks
metamorphic rocks
sedimentary rocks
sedimentary metamorphic rocks.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
71 comments Page 4 of 8.

Hari said:   8 years ago
Gneiss is a high-grade metamorphic rock, meaning that it has been subjected to higher temperatures and pressures than schist. It is formed by the metamorphosis of granite, or sedimentary rock. Gneiss displays distinct foliation, representing alternating layers composed of different minerals.

Saurabh Chaurasia said:   8 years ago
No, the Right answer is A.

BUDH PRIYA MAURYA said:   8 years ago
Yes, the right answer is OPTION A.

Sanjeev KUMAR said:   8 years ago
The right answer is (A).

Santanu Acharya said:   8 years ago
Genesis is obtained from granite...A is correct

PRASENJIT said:   8 years ago
Gneiss is the metamorphic form of Granite.

NIL said:   7 years ago
Gneiss is obtained from Igneous rock Granite which undergoes the process of metamorphosis. So it can written as Gneiss is obtained from Igneous Metamorphic Rock. Here the answer will be A.

Manish Thakur said:   7 years ago
Gneiss is obtained from Granite (Igneous rock) because of metamorphism.

So, A is correct. More suitable answer could be Igneous Metamorphic Rock.

Dolly said:   7 years ago
D is the correct one as it settles after it's a metamorphic action.

Gopika said:   7 years ago
Gniess is a metamorphic rock. And it is obtained from granite, which is igneous plutonic rock. So I think option A gives the correct answer.


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