%&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz��������������������������������������������������������������������������� Except for the crust, no one has ever explored these layers in person. Structure of the Earth (UPSC Notes):- Download PDF Here, Your email address will not be published. (�� (�� I. (�� Listric (3 pts) 20. What is structural geology? Where (at what depth) are their boundaries? (�� (�� (�� The continental crust is thicker in the areas of major mountain systems. (�� GRADE 7 REVISION QUESTIONS SECTION: STRUCTURE OF THE EARTH 1. (�� (�� The outer core is iron and nickel and the inner core is mostly iron. Hence it is often termed as SIAL. Atmospheric Structure and Composition Chapter at a Glance Origin of the Earth and Atmosphere Atmospheric Composition Carbon Cycle Constant and Variable Gases Faint Young Sun Paradox Atmospheric Structure Summary Key Terms Review Questions Questions for Thought The atmosphere is a collection of gases held near the Earth by gravity. 8�؞#G��;H�K���ijN�p���rA�j�뎦�,�f�F�r��}r����}&z^�Wӡh����UK)�9)���% L/JR��ୈjC��j���1.��4�=ه�W���.�^��r0�J5�}�UX����� {m��Og�^�F����pb-�h�": H�t�h�p�M��Z�R^r��� ���}ά��|j��AS�uQ�GDA׻���8�8��}�{M�"F�%R���A'Aa��k'c^�\ʑ��,�V�l �j��78�-S^�R�-�� �pV��ۙ (�� (�� (�� Man at the edge of a gravel pit. (�� stream (�� The interior of the earth can be divided into 3 different layers – crust, mantle, and core. (�� Also explore over 93 similar quizzes in this category. (�� Beneath the mountains like the Rockies, Alps the crust is as thick as 100 km. �� � w !1AQaq"2�B���� #3R�br� Also, sometimes SIAL is used to refer to the Lithosphere. (�� Q����z�%��$�p'j��"���-��e+�r �j�M��-+ሠY^uT>���] p��#����"�M�(�;����$$g��4���cۏr������0g��^�{qRU��@c߄(7jc�B�7F}XK�2�%O���?d�*4��Ё� L� Z@� hŶZ����6 �CPɈfq�Z�bWQ��H��E׵�4Z�沑O���il]�����]��]߳V.��P`������嘻�uj�/�s>�Ol?����7�y�B������m�f+��I��� �Կ��`��1+�pH�k{0�ˎ�m2aOHr#\���h���� QC��]�6fZl�EtНF��������um�a�Yu�4{¢��f���|O܆������E�Ǯ��A� J��ԪoK���fP�,�I��8�Y�G -i����K��v8�OS�s��>˯�m��0�Q��dC\��Z���>i/A|ϨA@�����O��[���Ϧ�]O�@h��F`�~�W�_��w�V���<4s润G���m��cV�H^ϸ �_wT���|��s�f�Bq���+�j�"�`�ݑ�K�>f�rJȯ�CC�i��\|0`�n耥��P��;T;�a��� ��e� ;�4�Q�8�T��xqԬ��͛�#"��R�_ ���r����V�U�6�Z��`S��`8��a>��q�ߟ�>?=&� 0000002780 00000 n (�� It is solid and made up of iron and nickel with temperatures of up to 5500°C. (�� (�� Give the quiz another go and don't forget to read up on this area by heading over to our tectonics resources using the topics link at the top of the page. It is the second layer made of two parts, upper and lower, the thick layer is made of extremely hot, semisolid rock is beneath the crust and is about 2,900 km thick made up of iron and magnesium. (�� Gravel pit compared with Bat Cave in Carlsbad Caverns. (�� (�� (�� (�� (�� You may schedule online tutoring lessons at your personal scheduled times, all with a Money-Back Guarantee. (�� (�� 0 Made to coincide with A … (�� Slickensides (3 pts) 14. The earth has a layered structure. How do they arise? The atmosphere is the layer of gases around the Earth. (�� %%EOF (�� The distance to the center of the Earth is 6,371 kilometers (3,958 mi), the crust is 35 kilometers (21 mi) thick, the mantle is 2855km (1774 mi) thick — and get this: the deepest we have ever drilled is the Kola Superdeep Borehole, which is just 12km deep. (�� H��T�n�@|�W��A��kǗB���&^�K�]7͏��&N�B�D�V�df��s.K These are of different kinds depending on the movement they make. Your email address will not be published. (�� It is about 2,300 km thick. (�� The crust is the outermost layer of the earth, and the core is the innermost layer of the earth, located at a depth of 2900 Km. (�� 0000000576 00000 n Structure of the Earth. 46 0 obj<> endobj (�� This article talks about the Geography syllabus for IAS exam as an assimilating discipline as a science of spatial characteristics and Divisions of geography and significance of physical geography. 48 0 obj<>stream (�� Click the circle by an answer with the mouse, then click on the Submit button to get a response. (�� Try the following. Earth – Origin & Evolution (UPSC Notes):-Download PDF Here. $4�%�&'()*56789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz�������������������������������������������������������������������������� ? The movement of material deep within the Earth may cause large plates made of the crust and upper mantle to move slowly over the Earth’s surface. (�� Just schedule a FREE Sessions to meet a tutor and get help on any topic you want! (�� (�� 3 high quality differentiated worksheets on the layers of the earth. (�� (�� The core-mantle boundary is positioned at the depth of 2,900 km. (�� For answers/solutions to any question or to learn concepts, take a FREE Demo Session. endobj (�� 0 d�3k+Aq%�O�j���LT��z2C�� p��iQ�N1���(�m$X1���iN����0�8����|p/�.=�N�����%gR��zx\C*�O� ΆYp(U��՚�^HL�涩��a�}�>����:0ٜ�;;'��"��n\�k�}e�A��zS'���� �9����&��^hf@� 5t? (�� �x�8� 6�V� �C�J � �`�/�0>s�ɖ��AŁ�)Fu�>�]x/ȗ��Qg`������ � �uI� Divergent plate boundary – moving away from each other. (�� It is the chief source of magma that finds its way to the surface during volcanic eruptions. The upper mantle makes the plates of the lithosphere move on this hot, liquid magma right below the lithosphere. (�� (�� (�� (�� It is also possible that the movements generate the Earth’s magnetic field, called the magnetosphere. (�� (�� �*=�{wJ� �,/��B$2#�^(-E�?�|�n���o�fJ ��)��/Ӏa�s÷��/��ǰ=]wqƄ&S�O�FN����]p���Z���/}�aꎯFc�;�k~dA;��Oکra�6����u5_�\�ay����W�7x���aW2��L�4ӼB'v֋.M�ZB�YjCsm��� o������B���?l:���i���^4��o����vI�$v���. �@�>^��&,U�jh�6{�jP!����>�����[���[~���Pwԕ�r�Xne |�3����T �/�d�H#�`r���w ���*� ��h�$D���H���M�B���̱'ǖo��5�~���������J:Y�}ծ���%�X&�G}��u�Vq�k:=U �TZ(��e2,;@�ؾ�����r 9�e|�d��0�1�^�l/�;���>5j�ĭ��uS ۵0Et�+c.p�������Ђ� S�S�-A��5{������>V�pɑ����ʹU �5�ﭳ��Ixt6. (�� (�� xref (�� (�� (�� (�� The Earth’s Crust. Mantle is basically a composition of iron and magnesium. Lithosphere is made up of the crust and a very little part of the upper mantle, this layer is divided into many slowly moving plates of solid rock that hold the continents and oceans above. (�� (�� (�� 0000003761 00000 n The thickness of the crust varies under the oceanic and continental areas. )��xVͿ!9��mNs�8�,Lm��[�.\��l�*�D6��U)�if|Fu%U���$�6�Z�,��+�п$�l���#:�M���bѵB5[��K��s�`'/s�6+�����C�;��地�p�������g��ڲ NCERT Notes Geography Structure Of The Earth, Geography is a very important component of the, Frequently Asked Questions related to Interior of Earth, UPSC Mains General Studies Paper 1 Syllabus, Strategy & Structure, Difference between Advancing and Retreating Monsoon, Previous Years Geography Questions in UPSC Mains General Studies Paper- 1, Topic-Wise General Studies Paper-1 Questions in UPSC Mains. … The plate tectonics theory, says that the earth’s outer layer, or lithosphere, is broken into several large pieces called plates. (�� (�� Overlying material is often unconsolidated rock, which is made up of loose particles. (�� Ŷx�7R1�������Oא��E���8�xͱ���. (�� (�� (�� (�� 4 0 obj Also includes a 'How science works' questions, and practice on how to use a key effectively. (�� endstream endobj startxref (�� (�� The liquid outer core controls most of the earth’s magnetic field, making the spinning action possible as the Earth rotates. (�� (�� (�� Next Question > Crust. endobj This intense heat from the inner core causes material in the outer core and mantle to move around. 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(�� (�� (�� (�� (�� (�� (�� Approximately how thick is the lithosphere or crust of the earth? �m��˂JgO���t��*lPo��4���������#�Q�1a�)��ʲe_����&�� OɰA�6h]�t�Mp�ld{���^P��} };�EY{��Ϲ���[�qE�)f��b(�1�G�;��?��H�N��}�/�Q��FE@�bJ��[���Oh����X8��#��RԴ,��U�H�U�ΉU��&Zk.=�6��9�>$��������h<3���s��{��I|����M�Y�d�ub�"M��S�'��€/�&�Z^#����R�g{Y�l��������f46J�4����n�gTۯ%t�O��.��4����Nl? �6y��OϪ�R�s�� ��\ T:$��s� (�� Thrust Fault (3 pts) 18. (�� You need to do some work on the structure of the Earth. (�� (�� Credit: https://en.wikipedia.org/wiki/Convergent_boundary, Credit: https://en.wikipedia.org/wiki/Plate_tectonics, Credit: https://en.wikipedia.org/wiki/Plate_tectonics#/media/File:Continental-continental_conservative_plate_boundary_opposite_directions.svg. Normal Fault (3 pts) 17. (�� << /Type /Pages /Kids [ (�� The crust differs in varied thickness from 30 to 70 km under the continents and 5 to 15 km in the ocean levels. What is the basic composition of the mantle? <> (�� Bedrock is the hard, solid rock beneath surface materials such as soil and gravel. (�� endstream endobj 47 0 obj<> endobj 49 0 obj<> endobj 50 0 obj<>/ProcSet[/PDF/Text]/ExtGState<>>> endobj 51 0 obj<> endobj 52 0 obj<> endobj 53 0 obj<> endobj 54 0 obj<> endobj 55 0 obj<> endobj 56 0 obj<> endobj 57 0 obj<> endobj 58 0 obj<>stream No credit card required, no obligation to purchase. The 4 different layers of earth are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust. Next Question > Mantle. (�� (�� The inner core is mainly iron in molten form. En echelon fractures (3 pts) 15. Each worksheet includes a diagram of the earth to label as well as different questions to answer. <> (�� (�� What do we call the thick, warm liquid rock that is found in the mantle of the earth… <>stream (�� included with the text of a question. 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