Insights Static Quiz -108, 2018
Physical Geography and Environment
INSIGHTS IAS QUIZ ON STATIC SYLLABUS - 2018
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Question 1 of 5
1. Question
Consider the following about tectonic plates
- They can be made of both tectonic and continental crust
- According to Plate tectonics theory, they move over asthenosphere
Which of the above is/are correct
Correct
Answer – B
A tectonic plate (also called lithospheric plate) is a massive, irregularly-shaped slab of solid rock,
generally composed of both continental and oceanic lithosphere. A plate may be referred to as the continental plate or oceanic plate depending on which of the two occupy a larger portion of the plate.
Plates move horizontally over the asthenosphere as rigid units
Incorrect
Answer – B
A tectonic plate (also called lithospheric plate) is a massive, irregularly-shaped slab of solid rock,
generally composed of both continental and oceanic lithosphere. A plate may be referred to as the continental plate or oceanic plate depending on which of the two occupy a larger portion of the plate.
Plates move horizontally over the asthenosphere as rigid units
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Question 2 of 5
2. Question
Which of the following is/are correctly matched
- Nazca plate – Between South America and Pacific plate
- Cocos plate – Between Central America and Pacific plate
Select the right code
Correct
Answer – C
Incorrect
Answer – C
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Question 3 of 5
3. Question
Which of the following are nomenclatured as major plates
- Arabian plate
- Nazca plate
- Eurasia plate
Select the right code
Correct
Answer – B
The theory of plate tectonics proposes that the earth’s lithosphere is divided into seven major and some minor plates. Young Fold Mountain ridges, trenches, and/or faults surround these major plates
The major plates are as follows :
(i) Antarctica and the surrounding oceanic plate
(ii) North American (with western Atlantic floor separated from the South American plate along the Caribbean islands) plate
(iii) South American (with western Atlantic floor separated from the North American plate along the Caribbean islands) plate
(iv) Pacific plate
(v) India-Australia-New Zealand plate
(vi) Africa with the eastern Atlantic floor plate
(vii) Eurasia and the adjacent oceanic plate.
Some important minor plates are listed below:
(i) Cocos plate : Between Central America and Pacific plate
(ii) Nazca plate : Between South America and Pacific plate
(iii) Arabian plate : Mostly the Saudi Arabian landmass
(iv) Philippine plate : Between the Asiatic and Pacific plate
(v) Caroline plate : Between the Philippine and Indian plate (North of New Guinea)
(vi) Fuji plate : North-east of Australia.
Other minor plates can be seen in the map given in previous question.
Incorrect
Answer – B
The theory of plate tectonics proposes that the earth’s lithosphere is divided into seven major and some minor plates. Young Fold Mountain ridges, trenches, and/or faults surround these major plates
The major plates are as follows :
(i) Antarctica and the surrounding oceanic plate
(ii) North American (with western Atlantic floor separated from the South American plate along the Caribbean islands) plate
(iii) South American (with western Atlantic floor separated from the North American plate along the Caribbean islands) plate
(iv) Pacific plate
(v) India-Australia-New Zealand plate
(vi) Africa with the eastern Atlantic floor plate
(vii) Eurasia and the adjacent oceanic plate.
Some important minor plates are listed below:
(i) Cocos plate : Between Central America and Pacific plate
(ii) Nazca plate : Between South America and Pacific plate
(iii) Arabian plate : Mostly the Saudi Arabian landmass
(iv) Philippine plate : Between the Asiatic and Pacific plate
(v) Caroline plate : Between the Philippine and Indian plate (North of New Guinea)
(vi) Fuji plate : North-east of Australia.
Other minor plates can be seen in the map given in previous question.
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Question 4 of 5
4. Question
Rocks of which region provides conclusive evidence about the position of Indian subcontinent in the past
Correct
Answer – A
Scientists using the palaeomagnetic data have determined the positions held by each of the present continental landmass in different geological Periods. Position of the Indian subcontinent (mostly Peninsular India) is traced with the help of the rocks analysed from the Nagpur area
Incorrect
Answer – A
Scientists using the palaeomagnetic data have determined the positions held by each of the present continental landmass in different geological Periods. Position of the Indian subcontinent (mostly Peninsular India) is traced with the help of the rocks analysed from the Nagpur area
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Question 5 of 5
5. Question
Mid Oceanic Ridge is an example of
Correct
Answer – B
Where new crust is generated as the plates pull away from each other. The sites where the plates move away from each other are called spreading sites. The best-known example of
divergent boundaries is the Mid-Atlantic Ridge. At this, the American Plate(s) is/are separated from the Eurasian and African Plates.
Incorrect
Answer – B
Where new crust is generated as the plates pull away from each other. The sites where the plates move away from each other are called spreading sites. The best-known example of
divergent boundaries is the Mid-Atlantic Ridge. At this, the American Plate(s) is/are separated from the Eurasian and African Plates.
