We 'n' Our Society - 6.pdf - School Books Publishers India

4. Fold and block mountains.Fold mountains Block mountains1. Have been made through Formed by the horizontal tensionaluplift and folding of the rock. forces.2. Have conical peaks and round Have flat tops and steep slopes.peaks.3. Two types-old fold and young Two types – Horsts and Graben. infold mountains.India.4. e.g. Alps, Aravallis. e.g. Western Ghats, Salt range inPakistan.F. Give at least two examples for each of the following :1. Fold mountains – Alps in Europe Aravallis in India.2. Block mountains – Black forest in Germany Salt range inPakistan.3. Volcanic mountains – Kilimanjaro in Africa Fujiyama inJapan.4. Continental Plateau – Ranchi in India Pot-war in Pakistan.5. Intermontane Plateau – Columbia in USA Tibet in Asia.6. Alluvial Plains – Indo-Gangetic Plain Nile basin ofEGYPT.G. Project / Activity :On an outline map of the world show the following"1. The Himalayas2. The Alps3. The Andes4. The Rockies5. The Aravallis6. Deccan plateau7. The plateau of Tibet8. Indus plains9. The Great plains of USA10. Siberian plainsAns. (Do yourself)H. Short answer questions :1. What is meant by tectonic forces?Ans. Forces from within the earth, which are responsible for the formationof different landmases, are called Tectonic Forces. Different types ofmountains and hills are made by internal process.2. What are yong fold mountains?Ans. The mountains which have been made through uplift and folding ofrock and having conical peaks as they have not yet been worn out byexternal process are known as yong fold mountains. e.g. Alps inEurope, Rockies in North America and the Himalayas in Asia.3. What are volcanic mountains?Ans. When a Volcano erupts hot gases, rock materials and hot magma isthrown out with great force which, after solidification, build layerupon layer over thousands of years and form tall cone-shapedmountains with high peak are known as volcanic mountains.Horizon Press 21We 'n' Our Society – 6