Which one of the following densely populated areas is NOT directly dependent on agriculture?
- (a)Lower Nile Valley
- (b)Eastern Plains of China
- (c)Java Island
- (d)North-Eastern United States of America
Correct — D, North-Eastern United States of America. The Lower Nile Valley, the Eastern Plains of China and Java Island are all classic examples of dense population sustained directly by intensive agriculture (irrigated Nile floodplain farming, wet-rice cultivation on China's eastern plains, and volcanic-soil rice farming on Java). The north-eastern USA, by contrast — the Boston-to-Washington megalopolis belt — is densely populated mainly because of industry, commerce, ports and urbanisation, not farming.
- (a)Lower Nile Valley — One of the world's oldest examples of dense agricultural population — irrigated floodplain farming supports it directly.
- (b)Eastern Plains of China — Dense population here is sustained by intensive wet-rice and multi-crop agriculture on fertile alluvial plains.
- (c)Java Island — Volcanic soils plus heavy monsoon rainfall support intensive, multiply-cropped agriculture that sustains one of the world's highest rural population densities.
Population geography distinguishes 'agricultural' population clusters — dense rural farming populations sustained directly by intensive cultivation (Nile Valley, Ganga Plain, Java, eastern China) — from 'industrial/urban' population clusters, dense populations sustained by manufacturing, trade and services (north-western Europe, north-eastern USA, Japan's Pacific belt).
The trap is treating all four options as 'just densely populated' without asking why. Three of the four are classic agriculture-driven population belts; the fourth, north-eastern USA, is a services-and-industry-driven megalopolis, making it the odd one out.
- Lower Nile Valley, Eastern Plains of China and Java Island — dense population sustained by intensive agriculture
- North-Eastern USA (the Boston-Washington corridor) — dense population sustained by industry, trade and urbanisation, not farming
- World population-density clusters are commonly grouped as 'agricultural' versus 'industrial/urban' belts
Three of the four population clusters are farming-driven; North-Eastern USA is the industrial/urban exception.
- Assuming all densely populated regions are farming-driven
- Not recognising north-eastern USA as an industrial/urban population cluster rather than an agricultural one
Usually phrased as 'which region's dense population is NOT due to agriculture' or the reverse, 'the high density of population in X is primarily due to' (see the linked 2001 UPSC PYQ on the Nile Valley and Java).
The high density of population in Nile Valley and Island of Java is primarily due to
- (a) intensive agriculture
- (b) industrialisation
- (c) urbanisation
- (d) topographic constraints
Answer(a) intensive agriculture — irrigated Nile floodplain and volcanic-soil monsoon farming sustain very dense rural populations.
Same concept from the opposite angle — the Nile Valley and Java's dense population is agriculture-driven, the exact contrast this MPPSC question draws against North-Eastern USA.
- practice — not a real PYQ
The high density of population in the Ganga Plain of India is primarily attributable to:
- (a)Industrialisation
- (b)Intensive agriculture
- (c)Mining
- (d)Trade and commerce
Answer(b) Intensive agriculture — fertile alluvium and assured irrigation support very high rural population density.
- practice — not a real PYQ
Which of the following is an example of a densely populated region sustained mainly by industry and trade rather than by agriculture?
- (a)Ganga Plain
- (b)Nile Delta
- (c)North-Western Europe
- (d)Java Island
Answer(c) North-Western Europe — an industrial/urban population cluster, unlike the agriculture-driven Ganga Plain, Nile Delta and Java Island.