666: Consider the following countries:
1. Albaina
2. Bosnia Herzegovina
3. Croatia
4. Macedonia
Which of these countries has/have Adriatic Sea as a boundary?
(a) 1 and 2
(b) 1, 2 and 3
(c) 4 only
(d) 3 and 4
667: Metals known to Indus Valley Civilisation were:

(a) Gold, copper, silver but not iron

(b) Silver, iron, bronze but not gold

(c) Iron, copper, gold but not silver

(d) Zinc, silver, iron but not gold
668: Aluminium surfaces are often anodized. This means the deposition of a layer of

(a) chromium oxide

(b) aluminium oxide

(c) nickel oxide

(d) zinc oxide
669: What is the application of Somatic Cell Nuclear Transfer (SCNT) Technology?

(a) Production of biolarvicides
(b) Manufacture of biodegradable plastics
(c) Reproductive cloning of animals
(d) Production of organisms free of diseases
670: Which of the following pairs is not correctly matched?

(a) Arjun : Indigenously produced Main Battle Tank (MBT)

(b) Phalcon : Cruise missile supplied by Russia to India

(c) Saras : Indigenously developed civilian passenger aircraft

(d) Operation : New Indian Naval Base at Karwar Seabird