Landforms and their Evolution Ch (6) Practice Quiz in English Part 1 || Class 11 Geography Book -1 Practice Quizzes in English Posted on February 25, 2025February 27, 2025 by Anshul Gupta0% 0 votes, 0 avg 1 Landforms and their Evolution Ch (6)Practice Quiz in English Part 1 || Class 11 Geography Book -1 Practice Quizzes in English 1 / 201. What is a cirque? A. A crescent-shaped sand dune with points downwind B. A deep, bowl-shaped basin carved by a glacier C. A long ridge of glacial till D. A sharp, narrow ridge between two cirques Explanation: A cirque is a bowl-shaped, amphitheater-like depression carved out by the head of a glacier. 2 / 202. What are incised meanders? A. Meanders found in plains of alluvium B. Meanders cut in hard rocks C. Meanders formed by wind D. Meanders formed by glaciers Explanation: Incised meanders are meandering river channels that have cut deeply into bedrock, often found in areas where the land has been uplifted. 3 / 203. What are potholes? A. Large, deep holes at the base of waterfalls B. Circular depressions formed by stream erosion C. Crescent-shaped sand dunes D. Long ridges of glacial till Explanation: Potholes are rounded depressions in the bedrock of a riverbed, formed by the swirling action of water and sediment. 4 / 204. What is a Karst topography? A. A landscape formed by wind erosion B. A landscape formed by groundwater erosion in limestone C. A landscape formed by glacial erosion D. A landscape formed by volcanic activity Explanation: Karst topography is a distinctive landscape characterized by sinkholes, caves, and underground drainage systems, formed by the dissolution of soluble rocks like limestone. 5 / 205. What are stalagmites? A. Long ridges of glacial till B. Crescent-shaped sand dunes with points downwind C. Cone-shaped formations rising from cave floors D. Icicle-like formations hanging from cave ceilings Explanation: Stalagmites are upward-growing mineral deposits from the floor of caves, formed by the dripping of mineral-rich water. 6 / 206. What are caves? A. Underground chambers formed by the dissolution of limestone B. Long ridges of glacial till C. Crescent-shaped sand dunes with points downwind D. Underground chambers formed by wind erosion Explanation: Caves are natural underground voids or chambers, often formed by the dissolving action of acidic groundwater on soluble rock like limestone. 7 / 207. What is a gorge? A. A flat plain formed by deposition B. A deep valley with very steep to straight sides C. A shallow valley with gentle slopes D. A circular depression formed by wind erosion Explanation: A gorge is a narrow, deep valley with steep sides, often formed by river erosion in resistant rock formations. 8 / 208. What are stalactites? A. Icicle-like formations hanging from cave ceilings B. Crescent-shaped sand dunes with points downwind C. Cone-shaped formations rising from cave floors D. Long ridges of glacial till Explanation: Stalactites are icicle-shaped mineral deposits hanging from the ceilings of caves, formed by the dripping of mineral-rich water. 9 / 209. What is a delta? A. A cone-shaped deposit formed where a stream enters a valley B. A crescent-shaped sand dune with points downwind C. A long ridge of glacial till D. A flat plain formed by deposition at the mouth of a river Explanation: A delta is a landform created at the mouth of a river where it enters a slower-moving or standing body of water, like a lake or ocean. 10 / 2010. What is a glacial valley? A. A long ridge of glacial till B. A V-shaped valley carved by a river C. A crescent-shaped sand dune with points downwind D. A U-shaped valley carved by a glacier Explanation: A glacial valley, also known as a glacial trough, is a long, U-shaped valley carved out by the erosive forces of a glacier. 11 / 2011. What is a meander? A. A sharp bend in a river channel B. A straight channel pattern C. A waterfall D. A loop-like channel pattern Explanation: A meander is a bend or curve in a river’s course, formed by the lateral erosion and deposition of sediment. 12 / 2012. What is the most important geomorphic agent in humid regions? A. Wind B. Glaciers C. Groundwater D. Running water Explanation: Running water is the most important geomorphic agent in humid regions due to its ability to erode, transport, and deposit vast amounts of material, shaping the landscape over time. 13 / 2013. What are point bars? A. Sediments deposited on the inside of meander bends B. High, sharp-pointed peaks formed by glaciers C. Long ridges of sand and shingle parallel to the coast D. Crescent-shaped sand dunes with points downwind Explanation: Point bars are crescent-shaped deposits of sediment found on the inside bends of meandering rivers. 14 / 2014. What are river terraces? A. Crescent-shaped sand dunes with points downwind B. Surfaces marking old valley floor or floodplain levels C. Long ridges of sand and shingle parallel to the coast D. High, sharp-pointed peaks formed by glaciers Explanation: River terraces are step-like landforms along river valleys, representing former floodplains or valley floors that have been abandoned as the river cut down to a lower level. 15 / 2015. What is a peneplain? A. A type of glacier B. A type of desert C. A type of mountain D. An almost plain formed by stream erosion Explanation: A peneplain is a low-lying, nearly flat landform created by the erosional forces of running water over long periods. 16 / 2016. What is a glacier? A. A large mass of ice floating in the ocean B. A long ridge of glacial till C. A crescent-shaped sand dune with points downwind D. A large mass of ice formed by compacted snow Explanation: A glacier is a persistent body of dense ice that is constantly moving under its own weight, formed by the accumulation and compaction of snow over time. 17 / 2017. What are natural levees? A. Long ridges of sand and shingle parallel to the coast B. Crescent-shaped sand dunes with points downwind C. High, sharp-pointed peaks formed by glaciers D. Low ridges of coarse deposits along river banks Explanation: Natural levees are low, linear ridges of sediment that form along the banks of rivers, often during floods. 18 / 2018. What is an alluvial fan? A. A long ridge of glacial till B. A cone-shaped deposit formed where a stream enters a valley C. A flat plain formed by deposition at the mouth of a river D. A crescent-shaped sand dune with points downwind Explanation: An alluvial fan is a fan-shaped deposit of sediment formed where a fast-flowing stream emerges from a mountainous area onto a flatter plain. 19 / 2019. What are sinkholes? A. Openings in the ground formed by the collapse of caves B. Circular depressions formed by wind erosion C. Crescent-shaped sand dunes with points downwind D. Long ridges of glacial till Explanation: Sinkholes are depressions or holes in the ground caused by the collapse of the surface layer, often in areas underlain by soluble rock like limestone. 20 / 2020. What is a horn? A. A crescent-shaped sand dune with points downwind B. A deep, bowl-shaped basin carved by a glacier C. A sharp, pointed peak formed by the intersection of three or more cirques D. A long ridge of glacial till Explanation: A horn is a sharp, pyramidal peak formed by the headward erosion of multiple glaciers converging on a central point. 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