616: King Cobra is the only snake that makes its own nest. Why does it make its nest?
(a) It is a snake-eater and the nest helps attract other snakes
(b) It is a viviparous snake and needs a nest to give birth to its offspring
(c) It is an oviparous snake and lays its eggs in the nest and guards the nest until they are hatched
(d) It is a large, cold blooded animal and needs a nest to hibernate in the cold season
617: Endoscopy, a technique used to explore the stomach or other inner parts of the body is based on the phenomenon of
(a) total internal reflection
(b) interference
(c) diffraction
(d) polarisation
618: Among the following which planet takes maximum time for one revolution around the Sun?
(a) Earth
(b) Jupiter
(c) Mars
(d) Venus
619: Of the following, the oldest Sanskrit poet, whose composition still remains in original classical style, is:
(a) Asvaghosa
(b) Dandin
(c) Kalidasa
(d) Bhavabhuti
620: Which of the following pairs are correctly matched?
Enterprise : Industrial Group
1. VSNL : Bharati Group
2. Mundra Special Economic Zone Ltd. : Adani Group
3. CMC Ltd. : TATA Group
4. IPCL : Reliance Group
Select the correct answer using the codes given below:
(a) 1, 2 and 4
(b) 1, 2 and 3
(c) 3 and 4
(d) 2, 3 and 4