India : Location, Geologial Structure and Physiography-Il — Social Science STD 9 — Question
Gujarat BoardEnglish MediumSTD 9Social ScienceIndia : Location, Geologial Structure and Physiography-Il2 Marks
Question
State the major types of rocks.
✓
Answer
A composite matter made of one or more elements is called ‘Rock’. Accoding to Geologists, all solid matter on the crust earth is a ‘Rock’.] Rocks have a very and it may be very soft as well. Rocks porous or non-porous and can be heavy in weight. Different types of rocks are due to different processes. Generally the not have a specific chemical composition. these are composed of more than one On the basis of their formation process, can be divided into three categories.
These are
$(1)$ Igneous Rocks
$(2)$ Stratified or Depositional Rocks
$(3)$ Metamorphic Rocks
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