Odd-one-out (natural hazard type): Choose the word that does not belong to the group. Items to analyze by meteorological vs. geological/mass-movement phenomena: Flood, Hurricane, Avalanche, Earthquake Choose the single word that is different from the rest.

Given data

• Flood, Hurricane, Avalanche, Earthquake

Concept/Approach
Separate atmospheric storm systems from ground/surface events.

Step-by-step reasoning
Hurricane → large-scale atmospheric cyclone (wind/storm system). Flood → primarily hydrological/ground impact event. Avalanche → mass movement of snow on slopes (surface/terrain event). Earthquake → geological/tectonic event. Thus hurricane is the only core atmospheric storm, making it the odd one out.

Common pitfalls
Selecting "Flood" because it involves water; however, the sharper classification here is "storm vs. non-storm".

Final Answer
Hurricane