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Geography Continental Drift Theory and its evidence MCQ Questions for Class 11 Science

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वेगेनर के महाद्वीपीय विस्थापन सिद्धांत में पैंजिया की संकल्पना क्यों महत्वपूर्ण है?

Why is the concept of Pangaea important in Wegener's Continental Drift Theory?

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Correct Answer

A. यह सभी वर्तमान महाद्वीपों के पुराने संयुक्त रूप को समझाती हैIt explains the old joined form of all present continents

Step 1

Concept

Pangaea is the concept of an old joined landmass of all continents. Exam tip: treat Pangaea as the base of the theory.

Step 2

Why this answer is correct

The correct answer is A. यह सभी वर्तमान महाद्वीपों के पुराने संयुक्त रूप को समझाती है / It explains the old joined form of all present continents. Pangaea is the concept of an old joined landmass of all continents. Exam tip: treat Pangaea as the base of the theory.

Step 3

Exam Tip

पैंजिया सभी महाद्वीपों के पुराने संयुक्त भूभाग की संकल्पना है। परीक्षा में पैंजिया को सिद्धांत का आधार मानें।

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वेगेनर के अनुसार पैंजिया के चारों ओर स्थित महासागर का सही नाम क्या था?

According to Wegener what was the correct name of the ocean around Pangaea?

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Correct Answer

B. पैंथालासाPanthalassa

Step 1

Concept

Panthalassa was the vast ocean surrounding Pangaea. Exam tip: remember Pangaea for land and Panthalassa for water.

Step 2

Why this answer is correct

The correct answer is B. पैंथालासा / Panthalassa. Panthalassa was the vast ocean surrounding Pangaea. Exam tip: remember Pangaea for land and Panthalassa for water.

Step 3

Exam Tip

पैंथालासा पैंजिया को घेरने वाला विशाल महासागर था। परीक्षा में पैंजिया भूमि और पैंथालासा जल के लिए याद रखें।

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लॉरेशिया और गोंडवानालैंड के बीच स्थित सागर किस नाम से जाना गया?

The sea located between Laurasia and Gondwanaland was known by which name?

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Correct Answer

C. टेथिसTethys

Step 1

Concept

The Tethys Sea was considered between Laurasia and Gondwanaland. Exam tip: remember Tethys as the middle sea.

Step 2

Why this answer is correct

The correct answer is C. टेथिस / Tethys. The Tethys Sea was considered between Laurasia and Gondwanaland. Exam tip: remember Tethys as the middle sea.

Step 3

Exam Tip

टेथिस सागर लॉरेशिया और गोंडवानालैंड के बीच माना गया। परीक्षा में टेथिस को मध्य सागर की तरह याद करें।

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महाद्वीपीय विस्थापन सिद्धांत में अफ्रीका और दक्षिण अमेरिका के तटों का मेल किस प्रकार का प्रमाण है?

In Continental Drift Theory the matching coasts of Africa and South America are what type of evidence?

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Correct Answer

D. जिगसॉ फिट प्रमाणJigsaw fit evidence

Step 1

Concept

The coasts of both continents fit like puzzle pieces. Exam tip: write it as visual evidence.

Step 2

Why this answer is correct

The correct answer is D. जिगसॉ फिट प्रमाण / Jigsaw fit evidence. The coasts of both continents fit like puzzle pieces. Exam tip: write it as visual evidence.

Step 3

Exam Tip

दोनों महाद्वीपों के तट पहेली के टुकड़ों की तरह मिलते हैं। परीक्षा में इसे दृश्य प्रमाण के रूप में लिखें।

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मेसोसॉरस जीवाश्म का अलग महाद्वीपों पर मिलना किस निष्कर्ष को मजबूत करता है?

The occurrence of Mesosaurus fossils on separate continents strengthens which conclusion?

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Correct Answer

A. वे महाद्वीप पहले जुड़े रहे होंगेThose continents were probably connected earlier

Step 1

Concept

Mesosaurus was linked with freshwater so its fossils on distant continents indicate old connection. Exam tip: treat it as fossil evidence.

Step 2

Why this answer is correct

The correct answer is A. वे महाद्वीप पहले जुड़े रहे होंगे / Those continents were probably connected earlier. Mesosaurus was linked with freshwater so its fossils on distant continents indicate old connection. Exam tip: treat it as fossil evidence.

Step 3

Exam Tip

मेसोसॉरस मीठे पानी से जुड़ा जीव था इसलिए दूर महाद्वीपों पर इसके जीवाश्म पुराने जुड़ाव का संकेत देते हैं। परीक्षा में इसे जीवाश्म प्रमाण मानें।

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ग्लॉसोप्टेरिस के जीवाश्म गोंडवानालैंड के पक्ष में क्यों उपयोगी हैं?

Why are Glossopteris fossils useful in support of Gondwanaland?

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Correct Answer

B. क्योंकि वे कई दक्षिणी महाद्वीपों पर मिले हैंBecause they are found on many southern continents

Step 1

Concept

Glossopteris plant fossils show old connection of southern continents. Exam tip: call it plant fossil evidence.

Step 2

Why this answer is correct

The correct answer is B. क्योंकि वे कई दक्षिणी महाद्वीपों पर मिले हैं / Because they are found on many southern continents. Glossopteris plant fossils show old connection of southern continents. Exam tip: call it plant fossil evidence.

Step 3

Exam Tip

ग्लॉसोप्टेरिस पौधे के जीवाश्म दक्षिणी महाद्वीपों के पुराने जुड़ाव को दिखाते हैं। परीक्षा में इसे पौध जीवाश्म प्रमाण कहें।

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तिलाइट निक्षेपों का अध्ययन महाद्वीपीय विस्थापन में किस श्रेणी का प्रमाण देता है?

Study of tillite deposits gives which category of evidence in continental drift?

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Correct Answer

C. हिमानी प्रमाणGlacial evidence

Step 1

Concept

Tillite is related to old glacial deposits. Exam tip: connect tillite with climatic and glacial evidence.

Step 2

Why this answer is correct

The correct answer is C. हिमानी प्रमाण / Glacial evidence. Tillite is related to old glacial deposits. Exam tip: connect tillite with climatic and glacial evidence.

Step 3

Exam Tip

तिलाइट पुराने हिमानी निक्षेपों से संबंधित है। परीक्षा में तिलाइट को जलवायु और हिमानी प्रमाण से जोड़ें।

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वेगेनर के सिद्धांत की मुख्य वैज्ञानिक कमजोरी क्या मानी गई?

What was considered the main scientific weakness of Wegener's theory?

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Correct Answer

D. महाद्वीपों को चलाने वाले बल की स्पष्ट व्याख्या नहीं थीThere was no clear explanation of the force moving continents

Step 1

Concept

Wegener gave evidence but could not give a satisfactory cause of movement. Exam tip: write lack of force as criticism.

Step 2

Why this answer is correct

The correct answer is D. महाद्वीपों को चलाने वाले बल की स्पष्ट व्याख्या नहीं थी / There was no clear explanation of the force moving continents. Wegener gave evidence but could not give a satisfactory cause of movement. Exam tip: write lack of force as criticism.

Step 3

Exam Tip

वेगेनर प्रमाण तो दे सके लेकिन गति का संतोषजनक कारण नहीं दे पाए। परीक्षा में आलोचना के लिए बल की कमी लिखें।

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वेगेनर ने महाद्वीपों को खिसकाने के लिए किन बलों का सुझाव दिया था?

Which forces did Wegener suggest for moving continents?

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Correct Answer

A. ध्रुवीय पलायन और ज्वारीय बलPole fleeing and tidal forces

Step 1

Concept

Wegener suggested pole fleeing and tidal forces. Exam tip: remember that these forces were later considered insufficient.

Step 2

Why this answer is correct

The correct answer is A. ध्रुवीय पलायन और ज्वारीय बल / Pole fleeing and tidal forces. Wegener suggested pole fleeing and tidal forces. Exam tip: remember that these forces were later considered insufficient.

Step 3

Exam Tip

वेगेनर ने ध्रुवीय पलायन और ज्वारीय बलों का सुझाव दिया था। परीक्षा में याद रखें कि ये बल बाद में अपर्याप्त माने गए।

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ध्रुवीय पलायन बल किस पृथ्वी प्रक्रिया से जोड़ा गया था?

Pole fleeing force was linked with which Earth process?

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Correct Answer

B. पृथ्वी के घूर्णन सेEarth's rotation

Step 1

Concept

Pole fleeing force was considered related to Earth's rotation. Exam tip: place it among Wegener's proposed forces.

Step 2

Why this answer is correct

The correct answer is B. पृथ्वी के घूर्णन से / Earth's rotation. Pole fleeing force was considered related to Earth's rotation. Exam tip: place it among Wegener's proposed forces.

Step 3

Exam Tip

ध्रुवीय पलायन बल को पृथ्वी के घूर्णन से संबंधित माना गया। परीक्षा में इसे वेगेनर के प्रस्तावित बलों में रखें।

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