Simple Explanation
Density comparison meaningful तभी होती है जब units consistent हों और boundaries comparable definitions पर based हों। यदि one value persons per square kilometre और दूसरी different unconverted unit में हो तो comparison misleading होगा। इसी तरह boundary definitions change होने से average area बदल सकता है। इसलिए पहला विकल्प सही है। परीक्षा में numerical values compare करने से पहले unit and spatial base check करें। / A density comparison is meaningful when units are consistent and boundaries are based on comparable definitions. If one value is expressed per square kilometre and another uses a different unconverted area unit, the comparison can be misleading. Boundary definitions can also change the average area used in the calculation. Therefore, the first option is correct. In examinations, check units and spatial bases before comparing numerical values.
