Simple Explanation
Large cities employment, transport, education, healthcare, markets and entertainment जैसी कई सुविधाएं एक ही place पर concentrate कर सकती हैं। इन combined opportunities के कारण migration and population retention दोनों बढ़ सकते हैं। इसलिए तीसरा विकल्प सही है। Permanent snow and lack of services attraction reduce करते हैं। परीक्षा में cities के population concentration को multiple human factors के combined effect से समझें। / Large cities can concentrate employment, transport, education, health care, markets, and entertainment in one place. These combined opportunities can support both migration and population retention. Therefore, the third option is correct. Permanent snow and lack of services reduce attraction. In examinations, explain urban population concentration through the combined effect of multiple human factors.
