Rocks, Weathering, Earthquakes and Volcanoes

Cover key physical processes shaping Earth and related objective concepts.

Level

Core

Study Time

20 min

Exam Relevance

Medium to high

Core concepts

Rock types and formation basics.
Mechanical and chemical weathering.
Earthquakes and volcanoes: cause-level understanding.

Common mistakes

Confusing weathering with erosion.

Chapter-end mini quiz

5 quick questions from the question bank.

Question 1

Stalactite, stalagmite and pillars are the depositional landforms of

running water.wind.glacier.underground water.

Question 2

The formation of 'tors' on small rocky hills is associated with which among the following?

GraniteLimestoneAlluvialDolomite

Question 3

Which one among the following processes is NOT part of chemical weathering ?

SolutionHydrationReductionThawing

Question 4

Which one of the following statements about metamorphic rocks is not correct?

Due to segregation of minerals into wavy bands or platy surfaces, some metamorphic rocks develop foliations.Where the foliations develop into broad mineral bands, the metamorphic rock is extremely hard.Where the foliations are moderately thin, the metamorphic rock tends to flake apart.Rocks that originally were composed of one dominant mineral are often foliated by metamorphism.

Question 5

Which of the following statements with reference to shadow zones in an event of an earthquake is/are correct? 1. Zone between 105° and 145° from epicentre was identified as the shadow zone for both P-waves and S-waves 2. The shadow zone of P-waves is much larger than that of the S-waves Select the answer using the code given below:

1 only2 onlyBoth 1 and 2Neither 1 nor 2

Source Base

NCERT physical geography: rocks and weathering
CBSE natural hazard concept notes

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