421. Fish die in water bodies polluted by sewage; why?
Due to Reduction in oxygen
422. Colour blindness also known as Daltonism is a genetic disorder and It is the inability to distinguish between red colour and ?
Green colour
423. Mercury thermometers can be used to measure temperature up to how many °C?
360°C
424. Quilon was also called?
'Ten Vanchi' (Vanchi of the South)
425. German attack on Russia during the war was known as?
'Operation Barbosa'
426. Ismat Chughtai is associated with which field?
Literature
427. The Hundred years War started during the period of ?
King Edward III
428. By whom was the largest grant of villages to temples and brahmanas given?
The Guptas
429. Which Diwan privatised electric supply in Cochin town?
Diwan R.K. Shanmukham Chetti (1936)
430. Indian Institute of Chemical Biology is located at?
Kolkata (West Bengal).