only (i)

both (i) and (ii)

both (i) and (iii)

all (i), (ii) and (iii)

quartz

mica

gypsum

none of the above

basalt and marble are the only metamorphic rocks

there is no sedimentary rock

granite is the only igneous rock

quartz and mica are minerals

arches

rubble masonry

roads

retaining walls

hard

tough

heavy

light