Question

what are the disadvantage of writing on hard surface

Answer 1

Wtiting on a hard surface cannot be destroyed easily.
It cannot be crumpled into powder when dried.
Writing on a hard surface is a laborious job and cannot be erased easily

Answer 2

here is u r answer....
.....
the disadvantage of writing on hard surface . expand of more time and in new technology 21 century they don't more time expand many new technology created by science they help how to fast writing on hard surface.

main disadvantage expand of money . expand time ...
.....ok