UPSC Exam > UPSC Videos > Geography for UPSC CSE > Types of Rocks & Sea Floor Spreading Theory
Types of Rocks & Sea Floor Spreading Theory Video Lecture | Geography for UPSC CSE
|
180 videos|475 docs|198 tests
|
FAQs on Types of Rocks & Sea Floor Spreading Theory Video Lecture - Geography for UPSC CSE
| 1. What are the three main types of rocks? |  |
Ans. The three main types of rocks are igneous, sedimentary, and metamorphic. Igneous rocks are formed from solidified lava or magma, sedimentary rocks are formed from the accumulation and compression of sediments, and metamorphic rocks are formed when existing rocks undergo intense heat and pressure.
| 2. How does sea floor spreading occur? | |
Ans. Sea floor spreading occurs at mid-oceanic ridges where tectonic plates move apart. Magma rises from the mantle and creates new oceanic crust, which then spreads out in opposite directions. As the new crust forms, older crust is pushed away, creating a continuous process of spreading and the formation of new ocean floor.
| 3. What evidence supports the theory of sea floor spreading? | |
Ans. The theory of sea floor spreading is supported by several lines of evidence. One piece of evidence is the magnetic striping found on the oceanic crust, where alternating bands of normal and reversed magnetic polarity mirror the Earth's magnetic field reversals. Additionally, the age of the oceanic crust gets progressively older as one moves away from the mid-oceanic ridges, providing further support for the theory.
| 4. How does sea floor spreading contribute to plate tectonics? | |
Ans. Sea floor spreading is a key process in plate tectonics. As new oceanic crust forms and spreads apart, it pushes the existing crust away from the mid-oceanic ridges. This continuous movement of the crust drives the motion of tectonic plates, leading to the formation of new crust and the recycling of old crust through subduction zones.
| 5. Can sea floor spreading cause earthquakes? | |
Ans. Yes, sea floor spreading can cause earthquakes. As tectonic plates move apart during the process of sea floor spreading, the stress that builds up along the boundaries can eventually be released in the form of earthquakes. These earthquakes are typically shallow and occur along the mid-oceanic ridges, where the spreading is most active.
Related Exams
About this Video
|
9.1K Views |
|
4.89/5 Rating |
|
Nov 22, 2024 Last updated |
Video Description: Types of Rocks & Sea Floor Spreading Theory for UPSC 2024 is part of Geography for UPSC CSE preparation.
The notes and questions for Types of Rocks & Sea Floor Spreading Theory have been prepared according to the UPSC exam syllabus.
Information about Types of Rocks & Sea Floor Spreading Theory covers all important topics for UPSC 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Types of Rocks & Sea Floor Spreading Theory.
Introduction of Types of Rocks & Sea Floor Spreading Theory in English is available as part of our Geography for UPSC CSE for UPSC & Types of Rocks & Sea Floor Spreading Theory in
Hindi for Geography for UPSC CSE course. Download more important topics related with notes, lectures and mock test series for
UPSC Exam by signing up for free.
Description
Video Lecture & Questions for Types of Rocks & Sea Floor Spreading Theory Video Lecture | Geography for UPSC CSE - UPSC full syllabus preparation | Free video for UPSC exam to prepare for Geography for UPSC CSE.
Information about Types of Rocks & Sea Floor Spreading Theory
Here you can find the meaning of Types of Rocks & Sea Floor Spreading Theory defined & explained in the simplest way possible.
Besides explaining types of Types of Rocks & Sea Floor Spreading Theory theory, EduRev gives you an ample number of questions to practice Types of Rocks & Sea Floor Spreading Theory tests,
examples and also practice UPSC tests.
|
180 videos|475 docs|198 tests
|
|
Explore Courses for UPSC exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
study material
,mock tests for examination
,Objective type Questions
,Types of Rocks & Sea Floor Spreading Theory Video Lecture | Geography for UPSC CSE
,shortcuts and tricks
,Viva Questions
,Summary
,Semester Notes
,ppt
,Sample Paper
,Types of Rocks & Sea Floor Spreading Theory Video Lecture | Geography for UPSC CSE
,practice quizzes
,Free
,past year papers
,Previous Year Questions with Solutions
,Types of Rocks & Sea Floor Spreading Theory Video Lecture | Geography for UPSC CSE
,video lectures
,Important questions
,Extra Questions
,Exam
,MCQs
;
Study Types of Rocks & Sea Floor Spreading Theory on the App
Students of UPSC can study Types of Rocks & Sea Floor Spreading Theory alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Types of Rocks & Sea Floor Spreading Theory,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Types of Rocks & Sea Floor Spreading Theory is prepared as per the latest UPSC syllabus.
|
© 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