Question

ऐसी कौन सी चीज है जो सुबह देखो तो हरी दोपहर को देखो तो काली शाम को देखो तो नीली रात को देखो तो सफेद हमे ... which is green in the morning, black in the afternoon and white at night. ... शाम को

Answer 1

Algae is the answer.

Answer 2

algae is green in morning black in noon blue in evening and white in night