The Indian Plate, once part of Gondwanaland, drifted rapidly northward and collided with the Eurasian Plate about 50 million years ago, giving rise to the Himalayas. This collision represents which type of plate boundary?

Convergent (destructive) boundary, where plates collide and may form mountains

A stationary boundary where neither plate moves relative to the other

Divergent (constructive) boundary, where new crust is formed

Transform (conservative) boundary, where plates slide past each other

Vine, Matthews and Morley confirmed the theory of sea floor spreading in 1963 through the magnetic striping found in rocks on either side of mid-oceanic ridges. What does this striping pattern actually show?

Symmetrical bands of rock on either side of the ridge recording repeated reversals of the earth's magnetic poles

A gradual weakening of magnetism in rocks with increasing distance from the continents

Random, non-repeating magnetic patterns caused only by local volcanic eruptions

A continuous, unchanging magnetic field recorded uniformly across the entire ocean floor

According to Harry Hess's concept of sea floor spreading, as molten magma rises and forms new crust at the mid-oceanic ridges, what eventually happens to the older oceanic crust?

It is pushed away from the ridge and eventually sinks into the mantle at deep trenches

It melts immediately at the ridge and resolidifies there as new crust

It folds upward at the ridge itself to form the mid-oceanic ridge

It remains permanently in place at the ridge, becoming thicker over time

Chapter testGeographyIncluded in the seriesTest 11 of 40

CBSE Class 11 Humanities Geography · Ch 4: Distribution of Oceans and Continents

CBSE Class 11 Humanities Geography · Ch 4: Distribution of Oceans and Continents is an online chapter test in the CBSE Class 11 Humanities pattern, covering Distribution of Oceans and Continents. Attempt it on SeatBeat with a timer like the real exam, then see a detailed solution for every question and your score and weak-topic analysis.

Questions

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Negative marking

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Topics in this test

Topic	Subject	Questions
Distribution of Oceans and Continents	Geography	30

Difficulty: 7 medium · 23 hard

Distribution of Oceans and Continents MCQ questions with answers

The first 3 of 30 questions. Unlock the series for the rest, each with a solution.

Q1. The Indian Plate, once part of Gondwanaland, drifted rapidly northward and collided with the Eurasian Plate about 50 million years ago, giving rise to the Himalayas. This collision represents which type of plate boundary?
भारतीय प्लेट, जो कभी गोंडवानालैंड का हिस्सा थी, तेज़ी से उत्तर की ओर खिसकी और लगभग 5 करोड़ वर्ष पहले यूरेशियन प्लेट से टकराई, जिससे हिमालय का निर्माण हुआ। यह टकराव किस प्रकार की प्लेट सीमा का प्रतिनिधित्व करता है?
- A. Convergent (destructive) boundary, where plates collide and may form mountains / अभिसारी (विनाशकारी) सीमा, जहां प्लेटें टकराती हैं और पर्वतों का निर्माण कर सकती हैं
- B. A stationary boundary where neither plate moves relative to the other / एक स्थिर सीमा जहां कोई भी प्लेट दूसरे के सापेक्ष गति नहीं करती
- C. Divergent (constructive) boundary, where new crust is formed / अपसारी (निर्माणकारी) सीमा, जहां नई क्रस्ट बनती है
- D. Transform (conservative) boundary, where plates slide past each other / रूपांतरण (संरक्षी) सीमा, जहां प्लेटें एक-दूसरे के पास से सरककर गुज़रती हैं
Solution
When two plates collide and one is pushed under the other or mountains are formed, it is called a convergent or destructive boundary, as happened between the Indian and Eurasian Plates.
जब दो प्लेटें टकराती हैं और एक दूसरी के नीचे धकेली जाती है या पर्वतों का निर्माण होता है, तो इसे अभिसारी या विनाशकारी सीमा (convergent/destructive boundary) कहा जाता है, जैसा भारतीय और यूरेशियन प्लेटों के बीच हुआ।
Q2. Vine, Matthews and Morley confirmed the theory of sea floor spreading in 1963 through the magnetic striping found in rocks on either side of mid-oceanic ridges. What does this striping pattern actually show?
वाइन, मैथ्यूज़ और मोर्ले ने 1963 में मध्य-महासागरीय कटकों के दोनों ओर शैलों में पाई गई चुंबकीय पट्टियों (magnetic striping) के माध्यम से समुद्र तल प्रसरण के सिद्धांत की पुष्टि की। यह पट्टी वाला प्रतिरूप वास्तव में क्या दर्शाता है?
- A. A gradual weakening of magnetism in rocks with increasing distance from the continents / महाद्वीपों से बढ़ती दूरी के साथ शैलों में चुंबकत्व का क्रमिक कमज़ोर होना
- B. Random, non-repeating magnetic patterns caused only by local volcanic eruptions / केवल स्थानीय ज्वालामुखी विस्फोटों के कारण उत्पन्न यादृच्छिक, अपुनरावृत्त चुंबकीय प्रतिरूप
- C. A continuous, unchanging magnetic field recorded uniformly across the entire ocean floor / संपूर्ण महासागरीय तल पर समान रूप से दर्ज एक निरंतर, अपरिवर्तित चुंबकीय क्षेत्र
- D. Symmetrical bands of rock on either side of the ridge recording repeated reversals of the earth's magnetic poles / कटक के दोनों ओर शैलों की सममित पट्टियां जो पृथ्वी के चुंबकीय ध्रुवों के बार-बार उत्क्रमण को दर्ज करती हैं
Solution
The symmetrical magnetic stripes on either side of a mid-oceanic ridge record repeated reversals of the earth's magnetic poles over time, confirming that new crust forms continuously at the ridge.
मध्य-महासागरीय कटक के दोनों ओर सममित चुंबकीय पट्टियां समय के साथ पृथ्वी के चुंबकीय ध्रुवों के बार-बार उत्क्रमण को दर्ज करती हैं, जो यह पुष्टि करती हैं कि कटक पर निरंतर नई क्रस्ट बनती रहती है।
Q3. According to Harry Hess's concept of sea floor spreading, as molten magma rises and forms new crust at the mid-oceanic ridges, what eventually happens to the older oceanic crust?
हैरी हेस (Harry Hess) की समुद्र तल प्रसरण (sea floor spreading) की अवधारणा के अनुसार, जैसे-जैसे पिघला हुआ मैग्मा ऊपर उठकर मध्य-महासागरीय कटकों (mid-oceanic ridges) पर नई क्रस्ट बनाता है, पुरानी महासागरीय क्रस्ट का अंततः क्या होता है?
- A. It melts immediately at the ridge and resolidifies there as new crust / यह कटक पर तुरंत पिघल जाती है और वहीं पुनः ठोस होकर नई क्रस्ट बन जाती है
- B. It folds upward at the ridge itself to form the mid-oceanic ridge / यह कटक पर ही ऊपर की ओर मुड़कर मध्य-महासागरीय कटक का निर्माण करती है
- C. It remains permanently in place at the ridge, becoming thicker over time / यह कटक पर स्थायी रूप से बनी रहती है और समय के साथ अधिक मोटी हो जाती है
- D. It is pushed away from the ridge and eventually sinks into the mantle at deep trenches / यह कटक से दूर धकेल दी जाती है और अंततः गहरी खाइयों पर मैंटल में डूब जाती है
Solution
As new crust forms at the mid-oceanic ridge, it pushes the older crust outward, and this older crust eventually sinks back into the mantle at deep trenches, a process called subduction.
जैसे ही मध्य-महासागरीय कटक पर नई क्रस्ट बनती है, यह पुरानी क्रस्ट को बाहर की ओर धकेलती है, और यह पुरानी क्रस्ट अंततः गहरी खाइयों (trenches) पर मैंटल में वापस डूब जाती है, जिसे सबडक्शन (subduction) कहा जाता है।

Frequently asked questions

How many questions are in the CBSE Class 11 Humanities Geography · Ch 4: Distribution of Oceans and Continents?

30 questions for 30 marks, to be answered in 20 minutes.

Is there negative marking in the CBSE Class 11 Humanities Geography · Ch 4: Distribution of Oceans and Continents?

No — wrong answers are not penalised in this test.

Which topics does the CBSE Class 11 Humanities Geography · Ch 4: Distribution of Oceans and Continents cover?

Distribution of Oceans and Continents (30 questions).

Is the CBSE Class 11 Humanities Geography · Ch 4: Distribution of Oceans and Continents free?

It is part of the CBSE Class 11 Humanities (Arts) Test Series 2027 — Chapter-wise + Full Tests (40 tests, ₹199). You can first try Economics · Ch 1: Introduction for free.

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