The advantages of writing on a hard surface are as follows :
(i) .They overcome all chances of destruction from all objects of nature wind rain sun etc.
(ii) The insects could not eat such materials as they destroyed the manuscript of the past.
(iii) They are reserved for future generations to know about our rich fast and culture.
(iii) The hard surfaces a long-lasting
The disadvantages of writing on hard surface are as follows :
(i) It needs much hard metal to right on the heart surface.
(ii) It is not easily portable
(iii) It requires a lot of time to complete the writing.
(iv) Writing on hard surface is a very difficult task.