Question

Arrange the following with increasing level of uncertainty in disaster risk and its management:

• A. C, A, B, D
• B. A, B, D, C
• C. B, A, D, C
• D. A, B, C, D

Hint:

Disaster risk is the final combined result of hazard, exposure, vulnerability, and risk drivers, so it usually carries the highest uncertainty.

Answer 1

The Correct Option is B

Concept: Disaster risk is produced by the interaction of hazards, exposure, vulnerability, and risk drivers. As we move from individual factors to combined disaster risk, uncertainty generally increases.

Step 1: Understand increasing level of uncertainty.
Increasing level means arranging from lower uncertainty to higher uncertainty. \[ \text{Increasing uncertainty} = \text{Lower uncertainty} \rightarrow \text{Higher uncertainty} \]

Step 2: Understand each component.
Risk drivers are underlying causes such as poverty, urbanisation, weak governance, and environmental degradation.
Vulnerabilities and exposure describe who or what is at risk.
Hazards describe potentially damaging events such as floods, earthquakes, cyclones, and droughts.
Disaster risk is the final combined outcome of all these factors. \[ \text{Disaster Risk} = f(\text{Hazard, Exposure, Vulnerability, Risk Drivers}) \]

Step 3: Arrange from lower to higher uncertainty.
The increasing order is: \[ \text{Risk Drivers} \rightarrow \text{Vulnerabilities and Exposure} \rightarrow \text{Hazards} \rightarrow \text{Disaster risk} \] Using letters: \[ A, B, D, C \] Therefore, the correct answer is A, B, D, C.