Question of the Day; 1) Answer-- Option C is Correct. Bhakra Nangal Project have been built for hydropower generation and Irrigation in the Sutlej basin. 2) Answer-- Silica is the comman name For Silicon dioxide. 3) Answer-- Typhoid fever can be tested with a Widal test. 4) Answer-- Celeste saulo has become the first SG of World Meteorological Organization. 5) Answer-- Iran become the 9th member of SCO.