Question

to number of unseen passage​

Answer 1

Made mostly of collagen, bone is living, growing tissue. Collagen is a protein that provides a soft framework, and calcium phosphate is a mineral that adds strength and hardens the framework.

Answer 2

Answer:

Explanation:

What is unseen passage explain?

Unseen passages r those passages which are not present in our book.It is given on the question paper which we haven't read and we have to answer those questions with reference to the passage.