How Landscapes are Formed: Erosion & Deposition! #shorts #upsc #ssc #exam
Welcome to Simplified UPSC by : ! In this comprehensive discussion, we'll dive deep into NCERT Class 7 Geography Chapter 3: "Our Changing Earth" ( ). This session analyzes the dynamic forces driving changes on our planet's surface, forming the bedrock of Geomorphology essential for UPSC, SSC, and CBSE exams. Key Concepts Covered in this Chapter: *1. Earth Movements (Forces):* We begin by exploring the movement of Lithospheric Plates, driven by the molten magma beneath. We classify the forces shaping Earth into Endogenic (internal) forces like sudden (volcanoes, earthquakes) and slow (Diastrophic/mountain-building) movements, and Exogenic (external) forces of erosion and deposition. *2. Volcanoes & Earthquakes:* Understand the structure of a Volcano, the difference between Magma and Lava, and the destructive power of Earthquakes. We define the focus ( ) and epicentre (), and differentiate between P, S, and L seismic waves, along with their measurement using the Seismograph and Richter Scale. *3. Major Exogenic Agents & Landforms:* We systematically cover the erosional and depositional work done by the primary agents: *River:* Waterfalls (), Meanders (), Oxbow Lakes ( ), Floodplains, and Deltas. *Sea Waves:* Sea Caves ( ), Arches, Stacks, Sea Cliffs, and Beaches (). *Glaciers ():* U-shaped valleys and Glacial Moraines ( ). *Wind ():* Mushroom Rocks ( ), Sand Dunes ( ), and Loess deposits. We conclude by connecting these physical geography concepts to UPSC relevance, particularly Disaster Management and environmental balance. *Join our Community:* Access detailed lecture notes and practice questions on our Telegram channel: https://t.me/simplifiedupscbyppp Like this video if you found the discussion useful. Share your feedback and questions in the comments. Subscribe to Simplified UPSC by PPP and hit the bell icon for more high-quality NCERT analysis! ð SUMMARY ð This video covers NCERT Class 7 Geography Chapter 3, "Our Changing Earth," detailing the dynamic geological processes that shape the planet. The discussion clarifies the mechanism of Lithospheric Plate movement driven by magma convection. It sharply distinguishes between Endogenic forces (sudden events like volcanoes and earthquakes, including P, S, L waves, focus, and epicentre; and slow forces like diastrophism) and Exogenic forces (erosion and deposition). The core of the session focuses on the geomorphic work of external agentsrivers (meanders, deltas, oxbow lakes), sea waves (caves, arches, stacks, cliffs), glaciers (moraines, U-shaped valleys), and wind (mushroom rocks, sand dunes, loess). The session links these NCERT concepts directly to core UPSC topics in Physical Geography and Disaster Management, reinforced by a review of the chapter's exercise questions. #NCERTGeography #Class7Geography #OurChangingEarth #UPSCFoundation #GeographyForUPSC #EndogenicForces #ExogenicForces #Volcano #Earthquake #Geomorphology #SeismicWaves #RiverLandforms #GlacierLandforms #WindErosion #MushroomRocks #Floodplains #Deltas #OxbowLake #SeaCaves #Stacks #Loess #DiastrophicForces #NCERTClass7 #UPSC2025 #UPSC2026 #SSCGeography #CBSEClass7 #SimplifiedUPSC #NCERTSummary #IASFoundation #PhysicalGeography #PlateTectonics #DisasterManagement #EarthScience #FocusEpicentre #LithosphericPlates #NCERTExplained #HindiMedium #UPSCPreparation #GeographyBasics #EarthMovements #UPSC Watch the full video here:    âĒ NCERT GEO 7 Ch3 | OUR CHANGING EARTH | End...  #erosion #deposition #geography #earthscience #nature #geology #landforms #sciencefacts #education #environment #landscape #volcano #naturalwonders #earth #learning #shorts #sthalakriti #earthprocesses #sciencelovers #geographyclass