Simple Explanation
City area fixed होने पर additional residents same space में add होते हैं। Formula में population numerator बढ़ता है जबकि denominator unchanged रहता है, इसलिए population density बढ़ती है। तीसरा विकल्प सही है। Density decrease या unchanged तभी हो सकती है जब area या population का relation अलग हो। परीक्षा में fixed-area population growth को higher density से जोड़ें। / When the city area remains fixed, additional residents are added to the same space. In the formula, the population numerator increases while the denominator remains unchanged, so population density rises. Therefore, the third option is correct. Density would decrease or remain unchanged only under different changes in area or population. In examinations, connect population growth within a fixed area with higher density.
