641: In which one of the following the Gandhara sculptures of the Buddha are typically Indian and not Greek or Roman?
(a) In the treatment of the robe
(b) In the rendering of the physiognomy
(c) In the iconography
(d) In the style
642: India's contribution to Mathematics includes:
1. Number system
2. Decimal system
3. Concept of zero
(a) 1, 2 & 3
(b) 1 & 2
(c) 2 & 3
(d) 1 & 3
643: At which stage in its life-cycle does the silkworm yield the fibre of commerce?
(a) Egg
(b) Larva
(c) Pupa
(d) Imago
644: La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino?
1. La Nina is characterized by unusually cold ocean temperature in equatorial Indian Ocean whereas El Nino is characterized by unusually warm ocean temperature in the equatorial Pacific Ocean.
2. El Nino has adverse effect on south-west monsoon of India, but La Nina has no effect on monsoon climate.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
645: Consider the following pairs: Region often Country in news
1. Chechnya : Russian Federation
2. Darfur : Mali
3. Swat Valley : Iraq
Which of the above pairs is / are correctly matched ?
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3