Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > The rocks formed from molten magma, are calle...
Start Learning for Free
The rocks formed from molten magma, are called
- a)sedimentary rocks
- b)igneous rocks
- c)metamorphic rocks
- d)none of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
The rocks formed from molten magma, are calleda)sedimentary rocksb)ign...
Igneous rock is formed through the cooling and solidification of magma or lava. Igneous rock may form with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.
igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava. The magma can be derived from partial melts of existing rocks in either a planet's mantle or crust. Typically, the melting is caused by one or more of three processes: an increase in temperature, a decrease in pressure, or a change in composition. Solidification into rock occurs either below the surface as intrusive rocks or on the surface as extrusive rocks. Igneous rock may form with crystallization to form granular, crystalline rocks, or without crystallization to form natural glasses.
This question is part of UPSC exam. View all Civil Engineering (CE) courses
Most Upvoted Answer
The rocks formed from molten magma, are calleda)sedimentary rocksb)ign...
Answer:
Igneous Rocks:
Igneous rocks are formed from the solidification and crystallization of molten magma. Magma is a molten mixture of rock-forming substances, gases, and sometimes water. When magma cools and solidifies, it forms igneous rocks. These rocks are classified into two types based on their formation process:
1. Extrusive Igneous Rocks:
Extrusive igneous rocks are formed when magma erupts onto the Earth's surface or cools rapidly in the near-surface environment. The rapid cooling prevents the growth of large crystals, resulting in fine-grained or glassy textures. Examples of extrusive igneous rocks include basalt, andesite, and rhyolite.
2. Intrusive Igneous Rocks:
Intrusive igneous rocks are formed when magma cools slowly beneath the Earth's surface. The slow cooling allows for the growth of large crystals, resulting in coarse-grained textures. Examples of intrusive igneous rocks include granite, diorite, and gabbro.
Reason for Option B:
The question asks about the rocks formed from molten magma. Sedimentary rocks are formed by the deposition and lithification of sediments, while metamorphic rocks are formed by the transformation of existing rocks through heat and pressure. Neither of these processes involves the solidification of magma. Therefore, the correct answer is option B, igneous rocks.
Igneous Rocks:
Igneous rocks are formed from the solidification and crystallization of molten magma. Magma is a molten mixture of rock-forming substances, gases, and sometimes water. When magma cools and solidifies, it forms igneous rocks. These rocks are classified into two types based on their formation process:
1. Extrusive Igneous Rocks:
Extrusive igneous rocks are formed when magma erupts onto the Earth's surface or cools rapidly in the near-surface environment. The rapid cooling prevents the growth of large crystals, resulting in fine-grained or glassy textures. Examples of extrusive igneous rocks include basalt, andesite, and rhyolite.
2. Intrusive Igneous Rocks:
Intrusive igneous rocks are formed when magma cools slowly beneath the Earth's surface. The slow cooling allows for the growth of large crystals, resulting in coarse-grained textures. Examples of intrusive igneous rocks include granite, diorite, and gabbro.
Reason for Option B:
The question asks about the rocks formed from molten magma. Sedimentary rocks are formed by the deposition and lithification of sediments, while metamorphic rocks are formed by the transformation of existing rocks through heat and pressure. Neither of these processes involves the solidification of magma. Therefore, the correct answer is option B, igneous rocks.
Community Answer
The rocks formed from molten magma, are calleda)sedimentary rocksb)ign...
Why height of transmission line increase capacitance also decrease
Attention Civil Engineering (CE) Students!
To make sure you are not studying endlessly, EduRev has designed Civil Engineering (CE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Civil Engineering (CE).
|
|
Explore Courses for Civil Engineering (CE) exam
|
|
Top Courses for Civil Engineering (CE)View all
The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer?
Question Description
The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer?.
The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer?.
Solutions for The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE).
Download more important topics, notes, lectures and mock test series for Civil Engineering (CE) Exam by signing up for free.
Here you can find the meaning of The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice The rocks formed from molten magma, are calleda)sedimentary rocksb)igneous rocksc)metamorphic rocksd)none of theseCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Civil Engineering (CE) tests.
|
|
Explore Courses for Civil Engineering (CE) exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup