पृथ्वी की भू- गर्भिक संरचना (Geological History of Earth) ||Part- 17 || By- Prof. SS Ojha

भू - आकृति विज्ञान
भू - आकृति विज्ञान पृथ्वी के सभी बड़े तथा छोटे स्थलरूपों का तथा उन स्थलरुपों को निर्मित करने वाले आन्तरिक और वाह्य प्रक्रमों का वैज्ञानिक अध्ययन है |
वृहद स्थलरूपो में पर्वत श्रेणियॉ, पठार तथा मैदान आते है ,मध्यम स्थलरूपों में नदी घाटी , कार्स्ट घाटी ,बीच इत्यादि आते है | जबकि सूक्ष्म स्थलरूपों में नीक प्वांइट रिफिल तथा पुल ,रील इत्यादि आते हैं ।
ये स्थलरूप विभिन्न आन्तरिक बलों जैसे - पटलविरूपणी , पर्वत निर्माणकारी महादेशजनक ,उन्मज्जन ,निमज्जन ,सम्पीडनात्मक तथा तनावमूलक बलों द्वारा उत्पन्न होते है ।
बाह्य बलों में प्रमुख है विभिन्न अपक्षय जैसे -भौतिक , रसायनिक तथा जैविक | अन्य प्रक्रम अपरदनात्मक है । जैसे -जलीय ,वायुढ़ , हिमानी ,पारिहिमानी ,कार्स्ट तथा समुद्री ।
भू - आकृतिक ज्ञान का मानवहित के लिए प्रयोग भू - आकृतिक विज्ञान का एक वैज्ञानिक पहलू है।
GEOMORPHOLOGY
Geomorphology is the scientific study of all the major and minor landforms and all the endogenic and exogenic land sculpturing process on the earth.
Major landforms are mountain ranges, plateau and plains. Medium landforms are river valleys , karst valleys and beaches etc. Micro landforms are knick points, riffle- pools, rills etc.
These landforms are generated by different endogenic forces like diastrophic, orogenic, epeirogenic, emergence, submergence, compressional and tensional.
In exogenic forces main are weathering like physical, chemical and biological. The other are erosional processes like fluvial, aeolian, glacial, peri - glacial, karst and marine.
Application of geomorphological knowledge for human welfare is one of the significant aspect of geomorphology.
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[@user-wh4vq7qr1p]

Geography का सबसे अच्छा विडियो आपका है,no doubt

[@Parwezgeography_pcs]

सादर प्रणाम सर .बहुत ही कठिन विषय वस्तु को आसान तरीके से आपने बता दिया. हृदय से धन्यवाद.

[@damgararavi]

11:36 सही बोले सर,
बहुत सारे शिक्षक गलत जानकारी दे देते हैं।
जैसे कि खान सर ने बताया कि उल्का- पिंड के गिरने dinosaurs मारे गए।

[@AmitSharma-dc4re]

Guru ji apke charno me koti koti naman

[@jaybirsingh3679]

Jitni tariif ki zaye utni km hogi....thank you Sir..🙏🙏

[@ynshukla1]

Abhinandan .... Guruvar ..... Bhugol ke mere pehle shikshak🙏🙏🙏🙏

[@divyan6319]

Shandar jabardast jindabad.......pranam guruji🙏🙏🙏🙏🙏

[@sonuhanda906]

Amazing guru ji geography me regioning kha jata hai time scale ko jisko apne itne srl trike se krwaya

[@abhisheksinghdube9844]

Thanks sir best part of lecture jab aapne bataya 27:36 😀

[@AbdulSalam-lo6wb]

Sir I am pakistani .your teaching sytle is impressive and knowledgeable that is why I following in study.

[@damgararavi]

11:36 सही बोले सर,
बहुत सारे शिक्षक गलत जानकारी दे देते हैं।
जैसे कि खान सर ने बताया कि उल्का- पिंड के गिरने dinosaurs मारे गए।

[@alberthazarika1869]

Dhanyavaad sir

[@praveenupadhyay2376]

प्रणाम आपके लेक्चर्स ज्ञान के भण्डार है।धन्यवाद् सर कृपया जारी रखें

[@shivamshukla7754]

चरणस्पर्श सर , बहुत ही खूबसूरती से समझाया आपने , आपको कोटि-कोटि नमन ।

[@SurenderSinghGeography]

Aaj gyan hmesa jivit rahega sir.naman

[@salimjindran3652]

Aap present time me Geography ke best teacher ho

[@santoshkumaryadav6709]

I am waiting for this chapter, thank you sir. God , aapko lambi age de. Ham log bhi aapka aashirvaad nahi bhulenge

[@damgararavi]

11:36 सही बोले सर,
बहुत सारे शिक्षक गलत जानकारी दे देते हैं।
जैसे कि खान सर ने बताया कि उल्का- पिंड के गिरने dinosaurs मारे गए।

[@aakashsharma7769]

Thanks sir

[@unknownartist..3908]

आप जैसे शिक्षक हो तो पढाई आसान हो जाती है..

[@happy-bf6yw]

Best teachar ho sir app 👍👍
jyada se jyada vedio dale sir please gyan ka bandar ho app 🇮🇳🇮🇳

[@vinaysharma5381]

Hamare sir nhi rahe dost😓😓😓😓 om shanti

[@laljiram639]

Sabase behatarin tarika padhane hai aapka thanks 👍

[@AshishSingh-zy9ps]

Wizard of geography.... Thank u sir

[@damgararavi]

11:36 सही बोले सर,
बहुत सारे शिक्षक गलत जानकारी दे देते हैं।
जैसे कि खान सर ने बताया कि उल्का- पिंड के गिरने dinosaurs मारे गए।

[@ravidutt5031]

Sir Namaskar. Apka yeh lecture bahut hi knowledgeable and interesting tha. Sikhne me bahut maja aya. Bahut bahut dhanyawad.

[@upsc3901]

Bhut bhut dhanyavaad sir🙏🙏🙏🙏🙏

[@pradeeppatel-dh3rc]

🙏🙏

[@sureshkumar-lb4sj]

Mahan guru Ji...charan sparsh

[@irfanansari-gx7fd]

Dil se guruji Ko Naman.
Aapke jaise professor aaj kal nahi milte ..SAB CZcams pe bakwaas karte hai ,par aap bilkul sateek padahate hai.

[@sadhanakumari2891]

Jai Hind guru Dev ji
Bhagwan samb sada shiv May bless you healthy life

[@thesourceofwisdom3793]

Aap ke charano me naman guruji

[@SunitaYadav-mq2ip]

sir u r very respective for us,and my request is plz take care your self

[@KeshavKrishna-qq9bi]

You are the god of geography

[@mycuteis5114]

Thankyou so much sir...

[@skabdullah3155]

Hame lagta h sir video two part me hona chahiye in my point of view

[@Gautam_UP]

gurudev ki jai ho......................

[@sakyasingh7108]

Sirji aap jaise great personality ko dekhkar bidwan aur bidwata ka darshan hota h apko sadar pranam

[@abhishekmeena3855]

Greatest teacher on the Earth sir.......

[@sunnydogra9620]

Kafi ache se btaya guru ji ne 🌹

[@rupsi3461]

माननीय गुरु जी आपने बहुत ही सुन्दर व्याख्या की है।

[@SaddyhasanMusic96]

अतुलनीय 🙏🙏♥️♥️

[@muqtadirbubere2686]

Sir thank you sir ji

[@praveshkumarsingh2081]

Bhut shi sir ,best video

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THANK YOUU..
YOU ARE GREAT..
AWASOME SIRR..
LOVE U..😘😘😘

[@jayshreemehta7862]

Sir... Really aap bhut ache ho

[@princejha2228]

Bahut bahut Dhanyabad sir. Sadar pranam.

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Speechless

[@neeteshahirwar4721]

गुरु जी को चरण स्पर्श 🙏🏼🙏🏼

[@LALUKUMAR-xo6tl]

Very explain in geography subject in preparation for I. A. S

[@NITESHKUMAR-xt6gd]

Bhut bhut dhanyawad sar. ..

[@abhisheksaini2197]

Thnks sir...

[@AshwaniKumar-zl2ku]

Great Guru( teacher)

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Thanks guru ji

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sense of humor....with great understanding,,very rare

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Bahut hi umda class

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aaj ke teacher jo double meaning bate krke bheed ikktha krte ..unke muh pe sidha tamacha hai ..very good sir ..aapke chrno me sadar parnam 🙏

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I miss you sir 🙏 🙏

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Dhanyabad sir

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Thank you guru ji

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Thank you Sir....🙏🙏🙏🙏

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I from Bengal.... I follow you in every topic.

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Thank u sirji

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Super teaching style....sir

[@shashijha371]

Best

[@RajeevVerma73]

Bhut aacha sir

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Guruji Pranam

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🙏🙏🙏

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Amazing lecture.

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thanks sir

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Thanks

[@anamikatiwari4397]

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You are my God

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Sandar vedio

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[@achyutkumar3367]

👍

[@anandbhardwaj3399]

Miss U sir

[@vdoraiburu1696]

Thank you very much sir........but jis kisi ne bhi unlike kiya hai wo ...Geology ka student hai hi nahi........."Bandar kiya jane adhrak ka swad"!

[@anchalsingh710]

Right👌

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Balram jai hind sir....20.1.19

[@intekhabalam416]

Very nice lecture

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[@Shubham1651]

Sir make seperate video on geological history of india

[@lalitpathak4733]

दादा जी प्रणाम

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नमस्ते सर.......

[@vikramsingh-cy4lk]

Old is gold 🙏

[@AmitKumar-iz3yk]

So good

[@MuhammadAsif-dj8cc]

Thank you sir i am from Pakistan

[@VIKASHKUMAR-ox3do]

very good sir