Answer:
Each word matched to its description below. (DISCLAIMER: I am not sure if it is correct. Sorry if it's wrong!!)
Explanation:
Urbanism: A social emphasis on life in densley poulated areas
Urbanization: An increasingly city-focused world with more and more cities
Metropolitan Area: A territory that spreads outward from the main city center to include suburbs and the surrounding towns.
Industrialization: The development of manufacturing and other industry in a society or country.
The statement is correct.
When a flood is giving a time-bonding term, such as the 100-year flood, in this statement, it means that it has been noticed that the floods from the particular river occur on approximately that much of a time span.
If there has been a flood recently, than it most probably means that there isn't going to be a flooding caused by that river for the foreseeable future.
Now, there's always exceptions, as the climate patters are changing constantly, and there's always surprises, but in general, in lot of regions of the world, there has been noticed a certain consistency in some natural occurrences.