What is the correct sequence of steps in risk assessment related to environmental hazards?

1.Risk characterisation

2.Exposure assessment

3.Hazard identification

4.Risk management

A3, 2, 1, 4 ✓ Correct

B3, 1, 2, 4

C1, 3, 2, 4

D2, 3, 4, 1

Correct answer: (A) 3, 2, 1, 4

Explanation

Hazard identification, Statement 3, is the first step, spotting the agent that can cause harm.

Exposure assessment, Statement 2, comes next by estimating how much contact people or ecosystems have.

Risk characterisation, Statement 1, then merges hazard and exposure into probability and severity of harm.

Risk management, Statement 4, is the last step, choosing controls to reduce the estimated risk.

The ordering 3, 2, 1, 4 keeps this logical flow, unlike sequences that begin with management or characterisation.

This staged paradigm underlies most environmental and public-health regulation.

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