Generally speaking, all rocks may be classified into three major groups, such as
Options
(a)Marble, limestone, igneous
(b)Igneous, limestone, mica
(c)Igneous, marble, sedimentary
(d)Igneous, sedimentary and metamorphic
The full breakdown is part of the paid archive
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Class 7Inside Our Earth— NCERT Geography, Chapter 2. The earth is built in concentric layers, like an onion. The crust on top is the thinnest — about 35 km under the continents (sial: silica and alumina) and about 5 km…
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