Natural Hazards, Causes and Management
ICSE · Class 11 · Geography
Summary of Natural Hazards, Causes and Management for ICSE Class 11 Geography. Key concepts, important points, and chapter overview.
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Overview
Natural hazards are threatening phenomena that may harm people, structures, and economic assets. A disaster happens when a hazard turns into a serious disruption of normal life and society cannot cope with the losses using its own resources. The chapter connects hazards, disasters, vulnerability, an
Key Concepts
A hazard is a threat
A hazard is a threat that may affect people, structures, or economic assets and may cause a disaster. Hazards may be natural or man-made.
A disaster is a serious disruption
A disaster is a serious disruption of society that causes widespread human, material, or environmental loss beyond the coping ability of the affected
Vulnerability is the extent to
Vulnerability is the extent to which a community, structure, service, or region is likely to be damaged or disrupted by a hazard.
Magnitude measures the seismic energy released
Magnitude measures the seismic energy released by an earthquake on the Richter scale. Intensity measures the damage caused and is measured by the Modi
The Richter scale was developed by
The Richter scale was developed by Charles Richter in 1935. It is open-ended and logarithmic. Each whole number rise means a 10-fold increase in wave
Learning Objectives
- Understand the meaning of hazard, natural hazard, and disaster
- Distinguish between hazard and disaster
- Classify major natural disasters by origin
- Study earthquakes, volcanoes, droughts, floods, and landslides as natural hazards
- Learn the causes, effects, and Indian distribution of these hazards
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Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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