Question at position 13 Coastal communities are most under threat from the combination of storms and rising sea levels.severe flooding and coastal erosion.the rising sea levels.powerful storms caused by climate change.

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In addressing coastal threat factors, we need to weigh how different elements interact rather than considering them in isolation.
Option 1: 'the combination of storms and rising sea levels.' This option captures the synergistic risk: storms can drive surges and rainfall that overwhelm defenses, while higher sea levels amplify the impact of those storms, leading to more extensive flooding and erosion than either factor alone. The interaction effect makes this combination the most comprehensive threat.
Option 2: 'severe flooding and coastal erosion.' While both flooding and erosion are serious outcomes for coastlines, this choice describes consequences rather than identifying the underlying drivers or their interaction. It lists results rather than explaining why coastal communities are at heightened risk.
Option 3: 'the rising sea levels.' Rising seas elevate baseline water levels and can increase flooding risk, but by themselves they do not account for the additional hazard posed when storms occur. The absence of storm activity in this option makes the threat narrower than the combined effect of multiple stressors.
Option 4: 'powerful storms caused by climate change.' Strong storms are a crucial component of coastal risk, yet focusing solely on storms ignores how elevated sea levels can worsen storm impacts. The full risk profile requires considering both the storms and the higher sea levels together, not in isolation.

Question at position 13 Coastal communities are most under threat from the combination of storms and rising sea levels.severe flooding and coastal erosion.the rising sea levels.powerful storms caused by climate change.

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