Question

3. Which of these tells us what the report is about?
(A) table of contents
(B) acknowledgement
(C) summary
(D) abstract
4. Which gives us the substance of the report?
(A) summary
(B) table of contents
(C) abstract
(D) preface
Thinh of these ie nato nart of main body of the renant​

Answer 1

Answer:

A curved mirror is a mirror with a curved reflecting surface. The surface may be either convex or concave. Most curved mirrors have surfaces that are shaped like part of a sphere, but other shapes are sometimes used in optical devices. 

Answer 2

Answer:

I can't understand your question bhaya