For the following questions answer them individually
Dr. Tamilisai Soundararajan was given the additional charge of ________ and was sworn in as the Lt. Governor of this Union Territory in February 2021, apart from being the Governor of Telangana.
Aqua regia is an acidic, corrosive and oxidative mixture consisting of ________ volume/volumes of concentrated hydrochloric acid and one volume of concentrated nitric acid, often used to dissolve gold and platinum.
Maithili Thakur and Lydian Nadhaswaram were bestowed with Sur Jyotsna National Music Awards _____________.
The Northern Plains of India are made of alluvial soil. They are formed by the interplay of which three rivers?