301. When is World Day for Water, recognized by the UN observed?
March 22
302. Buland Darwaza, built -by Akbar, is to commemorate the victory of which state?
Gujarat
303. Which is the birth place of Chattampi Swamikal?
Kannanmoola
304. Forest Research Instiute is situated in?
Peechi
305. Kollam Era was started by?
Rajashekhara 'Varman Kulasekhara.
306. The absorption of radio waves by the atmosphere depends on which thing?
Their frequency
307. By whom was Cell theory was propounded?
Schleiden and Schwann
308. Who is the inventor of Battery & Current Electricity?
Volta
309. Who is the author of “ Chandana Marangal “?
Madhavikutty (Kamala Surayya)
310. Who is the author of “‘My Struggle’”?
EK.Nayanar