Class 11 Geography - Distribution of Oceans and Continents - Mapping of the ocean floor Expert Quiz

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पैंजिया के चारों ओर फैले विशाल महासागर को वेगनर ने क्या कहा?

What did Wegener call the vast ocean surrounding Pangaea?

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Correct Answer

B. पैंथालासाPanthalassa

Step 1

Concept

Panthalassa was the primeval ocean around Pangaea. Exam tip: remember Pangaea as landmass and Panthalassa as ocean.

Step 2

Why this answer is correct

The correct answer is B. पैंथालासा / Panthalassa. Panthalassa was the primeval ocean around Pangaea. Exam tip: remember Pangaea as landmass and Panthalassa as ocean.

Step 3

Exam Tip

पैंथालासा पैंजिया को घेरने वाला आद्य महासागर था। परीक्षा में पैंजिया स्थलखंड और पैंथालासा महासागर याद रखें।

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यदि समान जीवाश्म दो आज अलग महाद्वीपों पर मिलते हैं और वह जीव खुले महासागर को पार नहीं कर सकता था तो सर्वोत्तम व्याख्या क्या होगी?

If identical fossils are found on two now separated continents and the organism could not cross open ocean what is the best explanation?

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Correct Answer

A. महाद्वीप पहले जुड़े हुए थेThe continents were formerly connected

Step 1

Concept

Such a case makes former land connection the most logical explanation. Exam tip: link organism mobility with strength of evidence.

Step 2

Why this answer is correct

The correct answer is A. महाद्वीप पहले जुड़े हुए थे / The continents were formerly connected. Such a case makes former land connection the most logical explanation. Exam tip: link organism mobility with strength of evidence.

Step 3

Exam Tip

ऐसी स्थिति पुराने स्थल संपर्क को सबसे तार्किक बनाती है। परीक्षा में जीव की गतिशीलता को प्रमाण की शक्ति से जोड़ें।

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वेगनर ने अपने सिद्धांत में महाद्वीपों को किस माध्यम पर चलते हुए माना जिसे बाद में आलोचना मिली?

In Wegener's theory continents were considered to move through which medium which later drew criticism?

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Correct Answer

A. कठोर महासागरीय भूपर्पटी के आरपारThrough rigid oceanic crust

Step 1

Concept

Continents ploughing through rigid ocean floor was considered mechanically unrealistic. Exam tip: write it as a major criticism.

Step 2

Why this answer is correct

The correct answer is A. कठोर महासागरीय भूपर्पटी के आरपार / Through rigid oceanic crust. Continents ploughing through rigid ocean floor was considered mechanically unrealistic. Exam tip: write it as a major criticism.

Step 3

Exam Tip

महाद्वीपों का कठोर समुद्री तल को चीरकर चलना यांत्रिक रूप से अविश्वसनीय माना गया। परीक्षा में इसे सिद्धांत की प्रमुख आलोचना लिखें।

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पुराचुंबकीय प्रमाण सीधे वेगनर के मूल प्रमाणों में प्रमुख नहीं था फिर भी बाद में इसका महत्व क्यों बढ़ा?

Palaeomagnetic evidence was not a major original proof of Wegener yet why did it later become important?

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Correct Answer

A. इसने समुद्री तल प्रसरण और प्लेट गति को मजबूत आधार दियाIt strongly supported seafloor spreading and plate movement

Step 1

Concept

Palaeomagnetism later gave strong evidence for plate tectonics. Exam tip: distinguish Wegener's original evidence from later evidence.

Step 2

Why this answer is correct

The correct answer is A. इसने समुद्री तल प्रसरण और प्लेट गति को मजबूत आधार दिया / It strongly supported seafloor spreading and plate movement. Palaeomagnetism later gave strong evidence for plate tectonics. Exam tip: distinguish Wegener's original evidence from later evidence.

Step 3

Exam Tip

पुराचुंबकत्व ने बाद में प्लेट विवर्तनिकी के लिए मजबूत प्रमाण दिया। परीक्षा में वेगनर के मूल प्रमाण और बाद के प्रमाण अलग रखें।

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महाद्वीपीय विस्थापन सिद्धांत में समुद्री तल के बारे में वेगनर की व्याख्या क्यों अधूरी थी?

Why was Wegener's explanation about the ocean floor incomplete in Continental Drift Theory?

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Correct Answer

A. क्योंकि समुद्री तल की प्रकृति और गति पर पर्याप्त जानकारी उपलब्ध नहीं थीBecause sufficient knowledge about the nature and movement of ocean floor was unavailable

Step 1

Concept

Scientific knowledge of the ocean floor was limited at that time. Exam tip: write this as a historical limitation.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि समुद्री तल की प्रकृति और गति पर पर्याप्त जानकारी उपलब्ध नहीं थी / Because sufficient knowledge about the nature and movement of ocean floor was unavailable. Scientific knowledge of the ocean floor was limited at that time. Exam tip: write this as a historical limitation.

Step 3

Exam Tip

उस समय समुद्री तल की वैज्ञानिक जानकारी सीमित थी। परीक्षा में इसे ऐतिहासिक सीमा के रूप में लिखें।

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यदि अफ्रीका और दक्षिण अमेरिका के बीच आज अटलांटिक महासागर है तो वेगनर की दृष्टि में यह किस प्रक्रिया का परिणाम है?

If the Atlantic Ocean exists today between Africa and South America how would Wegener view it?

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Correct Answer

A. पूर्व जुड़े भूभागों के अलग होने से बनी दूरी का परिणामResult of separation of formerly joined landmasses

Step 1

Concept

Wegener viewed the Atlantic as developed by separation of continents. Exam tip: connect it with South America-Africa fit.

Step 2

Why this answer is correct

The correct answer is A. पूर्व जुड़े भूभागों के अलग होने से बनी दूरी का परिणाम / Result of separation of formerly joined landmasses. Wegener viewed the Atlantic as developed by separation of continents. Exam tip: connect it with South America-Africa fit.

Step 3

Exam Tip

वेगनर ने अटलांटिक को महाद्वीपों के अलग हटने से विकसित माना। परीक्षा में इसे दक्षिण अमेरिका अफ्रीका फिट से जोड़ें।

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वेगनर के सिद्धांत में पैंजिया टूटने के बाद महासागरों के वितरण में क्या परिवर्तन माना गया?

In Wegener's theory what change in ocean distribution was assumed after Pangaea broke?

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Correct Answer

A. नए महासागरीय अंतराल विकसित हुए और पुराने संबंध टूटेNew oceanic gaps developed and old connections broke

Step 1

Concept

As continents separated oceanic areas formed between them. Exam tip: understand land separation and ocean expansion together.

Step 2

Why this answer is correct

The correct answer is A. नए महासागरीय अंतराल विकसित हुए और पुराने संबंध टूटे / New oceanic gaps developed and old connections broke. As continents separated oceanic areas formed between them. Exam tip: understand land separation and ocean expansion together.

Step 3

Exam Tip

महाद्वीपों के अलग होने से उनके बीच महासागरीय क्षेत्र बने। परीक्षा में भूभाग अलगाव और महासागर विस्तार को साथ समझें।

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