atmosphere | has composition 78% nitrogen and 21% oxygen (with 1% of other gases) by volume | ![has source: Abbot, D. 1984 Astronomers, Peter Bedrick Books, New York, 2001-09-27 09:31:58.0 has source: Abbot, D. 1984 Astronomers, Peter Bedrick Books, New York, 2001-09-27 09:31:58.0](facet.gif) |
has equivalent 14.07 lb in-2 | ![has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall, 2001-09-27 09:32:44.0 has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall, 2001-09-27 09:32:44.0](facet.gif) |
has equivalent 101325 pascals | ![has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall, 2001-09-27 09:32:44.0 has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall, 2001-09-27 09:32:44.0](facet.gif) |
has equivalent 760 torr | ![has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall, 2001-09-27 09:32:44.0 has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall, 2001-09-27 09:32:44.0](facet.gif) |
has equivalent 1.013 bars | ![has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:32:44.0 has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:32:44.0](facet.gif) |
is a part of Earth | ![2001-09-27 09:31:58.0 2001-09-27 09:31:58.0](facet.gif) |
has definition Mantle of gases round a star planet or moon, sometimes even forming the apparent surface of the body. For a body to retain an atmosphere depends on the body's gravity, and the temperature and composition of the gases. Mean atmospheric pressure at the surface is 10330 kg/m2, and is also referred to as atmosphere. | ![has source: Abbot, D. 1984 Astronomers, Peter Bedrick Books, New York, 2001-09-27 09:31:58.0 has source: Abbot, D. 1984 Astronomers, Peter Bedrick Books, New York, 2001-09-27 09:31:58.0](facet.gif) |
has definition A unit of pressure. | ![has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall, 2001-09-27 09:32:44.0 has source: Jerrard, H.G., McNeill, D.B. 1992 Dictionary of Scientific Units, Chapman and Hall, 2001-09-27 09:32:44.0](facet.gif) |
is an instance of pressure unit | ![2001-09-27 09:32:44.0 2001-09-27 09:32:44.0](facet.gif) |
pressure unit | is a unit of pressure | ![2001-09-27 09:32:44.0 2001-09-27 09:32:44.0](facet.gif) |
unit | has historical origin | ![2001-09-27 09:32:42.0 2001-09-27 09:32:42.0](facet.gif) |
represents | ![2001-09-27 09:32:42.0 2001-09-27 09:32:42.0](facet.gif) |