Answer
$\Delta P=0.39atm$
Work Step by Step
We know that,
$\Delta P={\rho}gh$
We plug in the known values to obtain:
$\Delta P=998\times 9.8\times4$
$\Delta P=39121.6 Pa$
$\Delta P=\frac{39121.6}{1.01\times 10^5}$
$\Delta P=0.39atm$
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