mechanically formed sedimentary rock
igneous rock
chemically precipitated sedimentary rock
metamorphic rock
sand stone
lime stone
shale
gypsum
only (iii)
both (i) and (iii)
both (ii) and (iii)
all (i), (ii) and (iii)
silicious rock
argillaceous rock
calcareous rock
aqueous rock
basalt
granite
quartz
syenite