Diamond is a very expensive ornament. It is composed of a single element.

(A) Carbon
(B) Gold
(C) Silver
(D) Platinum

Answer: (A) Carbon

Q. What is the other name of ornament given by the architectural historian Sir John Summerson, in a 1941 essay ?
(A) Surface decoration
(B) Surface modulation
(C) Surface cutting
(D) None of these

Answer: (B) Surface modulation

Q. What is the crystal structure of the diamond called?
(A) Orthorhombic
(B) Diamond Hexagonal
(C) Diamond cubic
(D) Diamond Tetragonal

Answer: (C) Diamond cubic