Which option wrongly classifies causes of population distribution?

Correct answer: Calling altitude a human factor

Population distribution means the way people are spread across different places. Its causes are commonly grouped into physical, economic and human factors. Climate, relief, altitude, soil and availability of water are physical or natural factors. Employment, transport, industries, towns and social facilities are human or economic influences because they are connected with human activity and opportunities. Correct classification helps us understand why some regions attract many people while others remain thinly populated.

Option D is the wrongly classified statement because altitude is a physical feature of the natural environment, not a human factor. High altitude may make settlement more difficult because of cold conditions, steep slopes or limited farming possibilities, although suitable technology can change the situation. Option A correctly classifies climate as physical. Option B correctly treats employment as a human influence, and option C reasonably places industry under economic factors. Thus D is the only incorrect classification.