C:\UPSC\GS1\2018\Q-7.txt
GeographyEXAMINEYear 201810 Marks
Concept / Statute•Directive•Institution / Stakeholder
What are the consequences of spreading of "Dead Zones" on marine ecosystems?
Exact Syllabus Pointer
Physical geography, distribution of key natural resources, factors for industrial location, geophysical phenomena (earthquakes, cyclones, volcanoes).
Connected Questions Across All Papers
Discovered through overlapping concepts: Dead Zones, Ocean Hypoxia, Eutrophication
Recurring Theme Trend: “Dead Zones”
2 questions across 14 yrsFrequency of UPSC CSE Mains questions testing this core concept, landmark doctrine, or foundational syllabus theme (2013-2026)
20130
20140
20150
20160
20170
20181
20190
20200
20211
20220
20230
20240
20250
20260