Geography

Endogenic and exogenic forces

Q: If a part of the crust is sinking downward, it is most related to which process?

Subsidence Subsidence is the downward movement of the crust and can be linked with endogenic movement. In exams write sinking crust as subsidence.

Q: Which option correctly matches an exogenic agent with its landform?

Wind and sand dune The direct answer is A, wind and sand dune. An exogenic agent works at or on the Earth’s surface. Wind can pick up loose sand, transport it, and deposit it when its speed falls or an obstacle interrupts its movement. Repeated deposition produces a mound or ridge called a sand dune. Step by step: dry, loose sand is available; wind lifts or rolls the grains; the grains move along the surface or through the air; wind loses energy; the grains settle; continued settling builds a dune. Option A is correct because wind is the exogenic agent and a sand dune is its depositional landform. Option B is wrong because magma is an internal molten material, while a floodplain is mainly built by river deposition; these two do not form the correct agent-landform pair. Option C is wrong because an earthquake is an endogenic event, whereas a delta is generally formed by river deposition, not by an earthquake. Option D is wrong because folding is an internal tectonic process, while a sea cave is formed by wave erosion; again, the pair does not match. Memory cue: wind deposits sand into dunes; rivers commonly deposit sediment into floodplains and deltas; waves can cut sea caves.

Q: Which example shows the role of transport in an exogenic process?

River carrying pebbles downstream A river shifts material, so this is the transport part of the erosion system. Treat moving material as transport in exams.

Q: A glacial valley is the result of which major exogenic agent?

Ice Glacial valleys form by abrasion and erosion by moving ice. Treat glacier as an exogenic agent in exams.

Q: Which of the following would not be considered an example of crustal deformation?

Silt deposition on floodplain Silt deposition is external fluvial deposition, not endogenic deformation of the crust. Link deformation with crustal change in exams.

Q: Why is weathering also called a preparatory process before erosion?

Because it loosens and weakens rocks Weathering breaks rocks and makes material available to erosional agents. Remember weathering prepares material in exams.

Q: Which option gives an incorrect match of endogenic and exogenic processes?

Folding and exogenic Folding is an endogenic process linked with compression inside the crust. Do not treat folding as exogenic in exams.

Q: In which region may physical weathering be more effective than chemical weathering?

Dry desert with high day-night temperature range In dry deserts, temperature range breaks rocks by expansion and contraction. Link desert plus temperature range with physical weathering in exams.

In this Class 11 Geography topic from the chapter Geomorphic Processes, students learn how endogenic forces originate within the Earth and shape its surface through tectonic movements, folding, faulting, earthquakes, and volcanism. They also examine exogenic forces acting at or near the surface, including weathering, erosion, mass movement, and deposition. The topic explains how these internal and external processes interact over time to create and modify landforms such as mountains, valleys, plains, and plateaus.

Expert · Level 2 · 25 questions

Practice questions

01If a part of the crust is sinking downward, it is most related to which process?

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Answer and explanation

Correct answer: A. Subsidence

Subsidence is the downward movement of the crust and can be linked with endogenic movement. In exams write sinking crust as subsidence.

Endogenic and exogenic forces

Practice questions

01If a part of the crust is sinking downward, it is most related to which process?यदि पर्पटी का कोई भाग नीचे धँस रहा है तो यह किस प्रक्रिया से सबसे अधिक संबंधित है?

02Which option correctly matches an exogenic agent with its landform?किस विकल्प में बहिर्जात एजेंट और उससे बनी भू-आकृति का सही मेल है?

03Why are volcanism and earthquakes more common at plate boundaries?प्लेट सीमाओं पर ज्वालामुखिता और भूकंप अधिक क्यों मिलते हैं?

04Which example shows the role of transport in an exogenic process?कौन सा उदाहरण बहिर्जात प्रक्रिया में परिवहन की भूमिका दिखाता है?

05Which statement shows that exogenic forces are not only destructive?किस कथन से स्पष्ट होता है कि बहिर्जात बल केवल विनाशकारी नहीं होते?

06A glacial valley is the result of which major exogenic agent?एक हिमानी घाटी किस प्रमुख बहिर्जात एजेंट का परिणाम है?

07Which of the following would not be considered an example of crustal deformation?निम्न में किसे पटल विरूपण का उदाहरण नहीं माना जाएगा?

08Why is weathering also called a preparatory process before erosion?किस कारण से अपक्षय को अपरदन से पहले की तैयारी प्रक्रिया भी कहा जाता है?

09Which option gives an incorrect match of endogenic and exogenic processes?किस विकल्प में अंतर्जात और बहिर्जात प्रक्रिया का गलत मेल है?

11The tendency toward land surface leveling is a major feature of which force group?भूमि के समतलीकरण की प्रवृत्ति किस बल समूह की प्रमुख विशेषता है?

13Why is considering only rainfall as the cause of landslides incomplete?भूस्खलन को समझने में केवल वर्षा को कारण मानना अपूर्ण क्यों है?

14In which situation do endogenic forces prepare a new working surface for exogenic forces?किस स्थिति में अंतर्जात बल बहिर्जात बलों के लिए नई कार्यभूमि तैयार करते हैं?

15Which option gives the correct reason for considering a river an exogenic agent?किस विकल्प में नदी को बहिर्जात एजेंट मानने का सही कारण दिया है?

17Which option correctly explains deposition as an exogenic process?किस विकल्प में निक्षेपण को बहिर्जात प्रक्रिया के रूप में सही समझाया गया है?

19Which option correctly states where the energy for exogenic forces mainly comes from?किस विकल्प में सही ढंग से बताया गया है कि बहिर्जात बलों की ऊर्जा कहाँ से आती है?

20Which option correctly states where the energy for endogenic forces mainly comes from?किस विकल्प में सही ढंग से बताया गया है कि अंतर्जात बलों की ऊर्जा कहाँ से आती है?

21In which example are exogenic forces exposing an endogenic structure?किस उदाहरण में बहिर्जात बल अंतर्जात संरचना को उजागर कर रहे हैं?

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Analytics choices

01If a part of the crust is sinking downward, it is most related to which process?

02Which option correctly matches an exogenic agent with its landform?

03Why are volcanism and earthquakes more common at plate boundaries?

04Which example shows the role of transport in an exogenic process?

05Which statement shows that exogenic forces are not only destructive?

06A glacial valley is the result of which major exogenic agent?

07Which of the following would not be considered an example of crustal deformation?

08Why is weathering also called a preparatory process before erosion?

09Which option gives an incorrect match of endogenic and exogenic processes?

11The tendency toward land surface leveling is a major feature of which force group?

13Why is considering only rainfall as the cause of landslides incomplete?

14In which situation do endogenic forces prepare a new working surface for exogenic forces?

15Which option gives the correct reason for considering a river an exogenic agent?

17Which option correctly explains deposition as an exogenic process?

19Which option correctly states where the energy for exogenic forces mainly comes from?

20Which option correctly states where the energy for endogenic forces mainly comes from?

21In which example are exogenic forces exposing an endogenic structure?