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Dev DudejaAIR 152

Question 7GS1GS1

Describe the nature and mode of origin of the main types of rock at the earth's crust.

Open scan (p.16)

Introduction

Earth's crust arose an extensive process of formation of Rock Igneum at Stratification having impact on Earth's topography.

18 words

Main Body

Rock formation:

(I) Igneous Rock:- made up of Magma cooled at cooling (solidified)

2Sedimentary Rock:- from sedimentaries of igneous Rock
3Metamorphic Rock:- under Heat and pressure.

Mode of formation and Origin:

(I) Igneous Rock:- Origin in magma chamber in earth, Metamorphic Rock:- Temperature and pressure difference.

2Sedimentary Rock:- (sedimentation, weathering, etc..)
3Metamorphic Rock:- Temperature and pressure difference.

Three Rocks on Earth, have distinct features shaping Earth's geological history.

72 words8 paragraphs

Diagram

Rock formation process showing Igneous, Magma, Intrusive, Metamorphic, Sedimentary Rock, Weathering, and related processes

Topper

Dev Dudeja

AIR 152

Subject & Paper

GS1GS1

Topic

Salient features of World's Physical Geography

Geology and Rock Formation

Types of rocks and their origins

Writing Stats

90

Total words

8

Paragraphs