Question

write any three uses of rocks.

Answer 1

Rocks are used for many purposes but some of them that we can see in our daily life are cited below :

Making Cement (Limestone) (Sedimentary Origin)Fire (Coal) (Sedimentary Origin)Writing (Chalk) (Sedimentary Origin)Building Material (Sandstone) (Sedimentary Origin)Bath Scrub (Pumice) (Igneous Origin)Kerb Stone (Granite) (Igneous Origin)

Answer 2

i)rocks are mainly use in manufacturing of Portland cement
They are valuable sources of minerals like gold.

(iii) Study of rocks provides information about the past.