Which one of the following atmospheric layers absorbs the ultraviolet rays of the sun?
When did the war of American Independence take place?
Who was the inventor of Bluetooth?
A television channel is characterised by:
Who among the following is considered to be the originator of the khayal and tarana styles of Hindustani Classical Music?
Saliva helps in the digestion of:
Project Elephant was launched by GOI in which of the following years?