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Social Science Shaping of the Earth's Surface Class 9 (Understanding Society India..) MCQ and Assertion Questions

10 Question MCQ (including Assertion) · Class 9 · Social Science · CBSE

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Chapter 2 - Shaping of the Earth's Surface | 10 questions | about 8 minutes

Practise Shaping of the Earth's Surface Class 9 (Understanding Society India..) with Teachoo's 10 Question MCQ (including Assertion) (Class 9 · Social Science · CBSE). Practise these questions in a free interactive quiz with answer feedback.

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Question 1 of 10

Question 1 of 10

Assertion (A): Weathering and erosion are the same process.

Reason (R): Both weathering and erosion involve moving broken rock pieces to a new place.

A Both A and R are true, and R is the correct explanation of A. B Both A and R are true, but R is not the correct explanation of A. C A is true, but R is false. D A is false, but R is true.

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Question 2 of 10

Which two parts of the Earth together form the lithosphere?

A The crust and the upper part of the mantle B The crust and the outer core C The lower mantle and the outer core D The inner core and the outer core

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Question 3 of 10

I. Weathering involves the movement of broken rock pieces to a new place.
II. Physical weathering can be caused by heat, frost or wind.
III. Chemical weathering can involve water, air or acid acting on minerals.
IV. Biological weathering can be caused by living things such as plant roots.

Which of the above statements, Are correct?

A II, III and IV only B I, II and III only C I and IV only D All four

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Question 4 of 10

Arrange the following stages of how convection currents move tectonic plates in chronological order and choose the correct option:
I. Cooler material sinks back down towards the core
II. This continuous looping motion pushes and pulls the plates above
III. Heat rising from the Earth's core makes mantle material rise
IV. The rising material cools as it nears the top of the mantle

A IV, III, I and II B III, IV, I and II C III, I, IV and II D II, IV, I and III

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Question 5 of 10

Boundary Type	Plate Movement	What It Creates
Convergent	Plates move towards each other	Fold mountains (e.g. Himalaya), or volcanoes and earthquakes when an oceanic plate sinks
Divergent	Plates move apart	New crust forms, e.g. mid-ocean ridges like the Mid-Atlantic Ridge
Transform	Plates slide past each other	Mostly earthquakes, e.g. along the San Andreas Fault

Using the table exactly , which boundary type is linked to the Mid-Atlantic Ridge?

A Convergent B Divergent C Transform D None of these

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Question 6 of 10

Which layer of the Earth is described in as the outermost, solid layer with a thickness of 30–40 km under continents and 5–7 km under oceans?

A Mantle B Crust C Outer core D Inner core

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Question 7 of 10

A geography student notices that 'contouring, bunding, terracing, dams and canals' under the Sindhu-Sarasvati civilisation, and separately mentions earthen bunds and check dams in the Zabo system of Nagaland. Which of the following BEST explains why includes both examples together?

A Both are unrelated historical facts placed randomly together B Both are examples of water-management methods used to fight soil erosion, showing this is a long-standing practice in India C Both describe methods for predicting earthquakes D Both are examples of wind erosion landforms

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Question 8 of 10

Assertion (A): Physical weathering always changes the chemical composition of rock.

Reason (R): Physical weathering is rock breaking into pieces due to heat, frost or wind, such as cracks forming from day-night heat.

A Both A and R are true, and R is the correct explanation of A. B Both A and R are true, but R is not the correct explanation of A. C A is true, but R is false. D A is false, but R is true.

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Question 9 of 10

Column A	Column B
(i) Continental plate	(a) Pacific Plate
(ii) Oceanic plate	(b) African Plate
(iii) Mixed plate	(c) Carries both land and ocean floor, the Indian Plate
(iv) Largest plate	(d) Carries ocean floors, with a thinner crust

Match the following items given in Column A with those in Column B, and choose the correct option:

A i-d, ii-b, iii-c, iv-a B i-b, ii-c, iii-d, iv-a C i-b, ii-d, iii-c, iv-a D i-a, ii-d, iii-c, iv-b

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Question 10 of 10

A

B

C

D

E
Outline map of India (schematic) with five locations marked

Point B marks the location of a rare mud volcano. Which island group is this?

A Sundarbans, West Bengal B Andaman and Nicobar Islands C Lakshadweep Islands D Andhra Pradesh coast

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