A. 2
B. 2.7
C. 3
D. 5
Correct Answer:
Option B – 2.7
Explanation
In geology, the sial refers to the composition of the upper layer of the Earth’s crust. Sial has a lower density (2700–2800 kg/m³)
The density of Sial is?
![A simple barometer is constructed using a liquid Q1 of density 16.2g/cm³. Calculate the least length of the tube to be used to measure the pressure of 1.5atm. [Density of mercury = 13.6g/cm³, 1atm = 76.0 cm of Mercury]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "A simple barometer is constructed using a liquid Q1 of density 16.2g/cm³. Calculate the least length of the tube to be used to measure the pressure of 1.5atm. [Density of mercury = 13.6g/cm³, 1atm = 76.0 cm of Mercury]")
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