Simple Explanation
National arithmetic density total population को total national area से divide करती है। यदि large mountains, deserts या forests sparsely populated हों और population valleys में concentrated हो, तो national average low रह सकता है जबकि local valley density high हो। इसलिए दूसरा विकल्प सही है। परीक्षा में average density और internal spatial variation के बीच अंतर समझना जरूरी है। / National arithmetic density divides total population by total national area. If large mountains, deserts, or forests are sparsely populated while population is concentrated in valleys, the national average can remain low even though local valley density is high. Therefore, the second option is correct. In examinations, it is important to distinguish average density from internal spatial variation.
