Question $6(2$ points$)$

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On average, how fast has relative sea level dropped in Sitka during the time of record?

$225$ mm$/$yr

$2\mathrm{.}25m\frac{m}{y}r$

$0\mathrm{.}225\frac{m}{y}r$

$0\mathrm{.}0225k\frac{m}{y}r$