Question

atmospheric pressure ​

Answer 1

Answer:

Hey mate here is your answer.....

Atmospheric pressure, sometimes also called barometric pressure (after the sensor), is the pressure within the atmosphere of Earth. The standard atmosphere (symbol: atm) is a unit of pressure defined as 101,325 Pa (1,013.25 hPa; 1,013.25 mbar), equivalent to 760 mm Hg, 29.9212 inches Hg, or 14.696 psi.The atm unit is roughly equivalent to the mean sea-level atmospheric pressure on Earth, that is, the Earth's atmospheric pressure at sea level is approximately 1 atm.

In most circumstances atmospheric pressure is closely approximated by the hydrostatic pressure caused by the weight of air above the measurement point. As elevation increases, there is less overlying atmospheric mass, so that atmospheric pressure decreases with increasing elevation. Pressure measures force per unit area, with SI units of Pascals (1 pascal = 1 newton per square metre, 1 N/m2). On average, a column of air with a cross-sectional area of 1 square centimetre (cm2), measured from mean (average) sea level to the top of Earth's atmosphere, has a mass of about 1.03 kilogram and exerts a force or "weight" of about 10.1 newtons, resulting in a pressure of 10.1 N/cm2 or 101 kN/m2 (101 kilopascals, kPa). A column of air with a cross-sectional area of 1 in2 would have a weight of about 14.7 lbf, resulting in a pressure of 14.7 lbf/in2.

Hope it helps you.....

Its Shivika Tiwari.....

Answer 2

atmospheric pressure is the pressure exerted by the atmosphere which includes different gases like carbon dioxide, carbon monoxide , oxygen as well as dust particle

etc .

atmosphere covered the Earth surface like a blanket of gases .

atmosphere is made up of different layer which includes

1. lithosphere
2. exosphere
3. thermosphere
4. mesosphere
5. troposphere

atmospheric pressure is different in different layer .When we go above altitude

the pressure decreases .

Atmospheric pressure is applicable too

out blood pressure is too maintained by atmospheric pressure that is why when we go high altitude our blood pressure is checked by the doctor .