Halophytes may show precell pressure very much higher than atmospheric pressure. Explain how this can happen?

What happens when a pressure greater than the atmospheric pressure is applied to pure water or a solution?

Explain the variation of atmospheric pressure due to height of the air column.

Explain how to measure atmospheric pressure by using open tube manometer.

State the unit for pressure used in atmospheric science. How is it related to the unit pascal ?

Assertion : When there is a thin layer of water between two glass plates , there is a strong attraction between them . Reason : The pressure between the plate becomes less than atmospheric pressure because pressure inside a bubble or drop is greater than outside pressure.

Effective filtration pressure was calculated to be 20 mmHg, where glomerular hydrostatic pressure was 70 mmHg. Which other pressure is affecting the filtration process? How much is it?

Answer the following questions : Explain with neat diagram the atmospheric pressure and its variation with the height from the sea level .

The solution which has higher osmotic pressure than some other solution is known as………

Explain how to measure atmospheric pressure by using mercury barometer.