Geography

Endogenic and exogenic forces

Q: What is considered the main source of endogenic forces?

Internal heat of the Earth Endogenic forces are driven by energy generated inside the Earth. For exams remember endogenic means internal origin.

Q: Which of the following processes is related to endogenic forces?

Folding Folding occurs due to internal pressure in the Earth's crust. In exams treat mountain building as an endogenic process.

Q: What is the general effect of endogenic forces on landforms?

They create relief Endogenic forces create relief such as mountains and plateaus. For exams remember them as constructive forces.

Q: What is considered the main work of exogenic forces?

Wearing down and leveling landforms Exogenic forces erode high areas and deposit material in low areas. In exams connect them with leveling.

Q: An earthquake is the result of which type of force?

Sudden endogenic force An earthquake occurs due to sudden release of energy inside the Earth. In exams consider it a sudden endogenic event.

Q: Why is volcanic activity called endogenic?

Because magma comes from inside the Earth Volcanic activity has its source in the Earth's interior. In exams link magma with an internal source.

Q: Mass movement is more influenced by which force?

Gravity In mass movement material moves downslope under gravity. For exams connect it directly with gravity.

Q: What is the main difference between weathering and erosion?

Weathering is breakdown in place and erosion is removal Weathering breaks material and erosion removes it. For exams remember the difference between breakdown and transport.

Q: What are the two major energy sources in geomorphic processes?

Earth's internal energy and solar energy Endogenic processes use internal energy and exogenic processes mostly use solar energy. In exams classify them by energy source.

Q: Formation of fold mountains is more related to which process?

Bending of crust due to compression Direct answer: Option A, bending of the crust due to compression. Fold mountains form when rock layers are squeezed by converging plates. Instead of breaking immediately, some layered rocks bend into arches and troughs; uplift then produces mountain ranges. The Himalaya are a major example of mountains associated with plate convergence and folding, although thrusting also occurs. Option A is correct because it states the essential force and response: compression causes bending. Option B is wrong because sand deposition can build dunes or sedimentary layers but does not create tectonic fold mountains. Option C is wrong because chemical weathering breaks down minerals at the surface and generally lowers or weakens relief rather than producing the original folds. Option D is wrong because wave erosion cuts coasts and removes material; it does not compress deep crust into folds. Memory cue: compression makes layers bend; bending makes fold mountains.

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.

Medium · Level 5 · 25 questions

Practice questions

01What is considered the main source of endogenic forces?

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Answer and explanation

Correct answer: A. Internal heat of the Earth

Endogenic forces are driven by energy generated inside the Earth. For exams remember endogenic means internal origin.

Endogenic and exogenic forces

Practice questions

01What is considered the main source of endogenic forces?अंतर्जात बलों का मुख्य स्रोत क्या माना जाता है?

02Which of the following processes is related to endogenic forces?निम्न में से कौन-सी प्रक्रिया अंतर्जात बलों से संबंधित है?

03What is the general effect of endogenic forces on landforms?अंतर्जात बलों का भू-आकृतियों पर सामान्य प्रभाव क्या होता है?

04What is considered the main work of exogenic forces?बहिर्जात बलों का मुख्य कार्य क्या माना जाता है?

05An earthquake is the result of which type of force?भूकंप किस प्रकार के बल का परिणाम है?

06Why is volcanic activity called endogenic?ज्वालामुखी क्रिया को अंतर्जात क्यों कहा जाता है?

07Mass movement is more influenced by which force?द्रव्यमान संचलन किस बल से अधिक प्रभावित होता है?

08What is the main difference between weathering and erosion?अपक्षय और अपरदन में मुख्य अंतर क्या है?

09What are the two major energy sources in geomorphic processes?भू-आकृतिक प्रक्रियाओं में ऊर्जा के दो बड़े स्रोत कौन-से हैं?

10Formation of fold mountains is more related to which process?वलन पर्वतों का निर्माण किस प्रक्रिया से अधिक संबंधित है?

11Under what condition does faulting form?भ्रंशन किस स्थिति में बनता है?

12In which general direction do exogenic processes change landforms?बहिर्जात प्रक्रियाएँ सामान्यतः किस दिशा में भू-आकृति को बदलती हैं?

13Valley cutting by a river belongs to which category?नदी द्वारा घाटी काटना किस श्रेणी में आता है?

14Slow uplift of the Earth's crust is what type of process?पृथ्वी की पर्पटी का धीमा उत्थान किस प्रकार की प्रक्रिया है?

15Deposition generally occurs after which process?निक्षेपण किस प्रक्रिया के बाद सामान्यतः होता है?

16What is the role of solar energy in exogenic processes?बहिर्जात प्रक्रियाओं में सूर्य ऊर्जा की भूमिका क्या है?

17Why are endogenic forces called constructive?अंतर्जात बलों को निर्माणकारी क्यों कहा जाता है?

18Why are exogenic forces considered destructive or degradational?बहिर्जात बलों को विनाशकारी या अपक्षयी क्यों माना जाता है?

19Deposition of alluvium by a river in plains is an example of what?मैदानी क्षेत्रों में नदी द्वारा जलोढ़ जमा करना किसका उदाहरण है?

20What is the result of balance between endogenic and exogenic forces?अंतर्जात और बहिर्जात बलों के बीच संतुलन का परिणाम क्या होता है?

21Uplift of a plateau is most related to which force?पठार का उत्थान किस बल से सबसे अधिक संबंधित है?

22What is included in diastrophism?डायस्ट्रॉफिज्म में क्या शामिल होता है?

23Which is the correct example of sudden endogenic forces?अचानक अंतर्जात बलों का सही उदाहरण कौन-सा है?

24What is the main feature of slow endogenic processes?धीमी अंतर्जात प्रक्रियाओं की प्रमुख विशेषता क्या है?

25Which process helps remove loose material after weathering?अपक्षय के बाद ढीले पदार्थ को हटाने में कौन-सी प्रक्रिया मदद करती है?

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Analytics choices

01What is considered the main source of endogenic forces?

02Which of the following processes is related to endogenic forces?

03What is the general effect of endogenic forces on landforms?

04What is considered the main work of exogenic forces?

05An earthquake is the result of which type of force?

06Why is volcanic activity called endogenic?

07Mass movement is more influenced by which force?

08What is the main difference between weathering and erosion?

09What are the two major energy sources in geomorphic processes?

10Formation of fold mountains is more related to which process?

11Under what condition does faulting form?

12In which general direction do exogenic processes change landforms?

13Valley cutting by a river belongs to which category?

14Slow uplift of the Earth's crust is what type of process?

15Deposition generally occurs after which process?

16What is the role of solar energy in exogenic processes?

17Why are endogenic forces called constructive?

18Why are exogenic forces considered destructive or degradational?

19Deposition of alluvium by a river in plains is an example of what?

20What is the result of balance between endogenic and exogenic forces?

21Uplift of a plateau is most related to which force?

22What is included in diastrophism?

23Which is the correct example of sudden endogenic forces?

24What is the main feature of slow endogenic processes?

25Which process helps remove loose material after weathering?