“…In spite of this, various simple and easy-to-use composite indexes have been utilized to describe complex technical and scientific problems. For instance, there are social composite indexes [2,3], economic and well-being indexes [4,5], medical indexes [6,7], soil quality indexes [8,9], environmental quality [10][11][12], air quality indexes [13,14] and agriculture indexes [15], as well as water quality indexes [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30] and so forth.…”