Simple Explanation
Polar research stations scientists, technicians and support staff की temporary or rotational population create कर सकती हैं। Harsh climate, limited housing and family services permanent settlement को restrict कर सकते हैं। इसलिए चौथा विकल्प सही है। परीक्षा में specialized functional populations को permanent residential populations से अलग पहचानना जरूरी है। / Polar research stations can create temporary or rotational populations of scientists, technicians, and support staff. Harsh climate, limited housing, and few family services may restrict permanent settlement. Therefore, the fourth option is correct. In examinations, specialized functional populations should be distinguished from permanent residential populations.
