The passage provides information that most helps to answer which one of the following questions?

Ohemaa on June 20, 2018


Why is the answer C and not D?

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Christopher on June 21, 2018

@Ohemaa, the passage gives a range of years that lichenometry is useful, but it never mentions a specific quake that was dated to any particular time. However, lines 56 to the end describe a few elements that need to be factored in to accurately assess the growth - specifically shade and wind are listed as contributing to quicker lichen growth.