Pressure due to fluids — task. Science State Board, Class 9.

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Choose the best option

1. The unit of pressure is__________.

$N / m^{2}$
$kg$
$N m^{2} {kg}^{- 4}$
$A m^{3} {kg}^{- 5}$

2. In a barometer, the height of mercury at sea level is__________.

$765 mm$
$771 mm$
$777 mm$
$760 mm$

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