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Classify and describe types of hazards, explain hazard characteristics such as.The concepts of hazard, hazard event, secondary hazards, multiple.Understanding the importance of natural hazard study.“Ecosystem-based Disaster Risk Reduction and Climate Change We can use: geomorphic signature, for example: deposits, watermark caused by floods. Where there is a lack of sufficient data for quantitative evaluation, or where certain variables cannot be expressed numerically, this qualitative ranking may be appropriate to take hazard mitigation decisions. This method uses ranking such as ‘high’, ‘moderate’ and ‘low ‘to assess a hazard event.In areas where there are no human interests, natural phenomena do not constitute hazards nor do they result in disasters. A hazardous event that causes unacceptably large numbers of fatalities and/or overwhelming property damage is a natural disaster. A natural phenomenon that occurs in a populated area is a hazardous event. A physical event, such as a volcanic eruption, that does not affect human beings is a natural phenomenon but not a natural hazard. Environmental events become hazards once they threaten to affect society and/or the environment adversely.Between 19 climate-related and geophysical disasters killed 1.3 million people and left a further 4.4 billion injured.
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