7.3.1/ jermarcus Flashcards
atmospehere
definition
An atmosphere is the layers of gases surrounding a planet or other celestial body. Earth’s atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases.
Altitude
the distance above sea level
density
Density is the number of things—which could be people, animals, plants, or objects—in a certain area. To calculate density, you divide the number of objects by the measurement of the area.
Troposphere
The troposphere is the lowest layer of the atmosphere, ranging from the Earth’s surface to an altitude of about 10–15 km, depending on latitude and time of year.
Stratosphere
lies above the earth’s weather and mostly changes very little. It contains the ozone layer, which shields us from the sun’s
Mesosphere
Image result for mesosphere definition
The mesosphere is a layer of Earth’s atmosphere.
Thermosphere
The thermosphere is a layer of Earth’s atmosphere that is directly above the mesosphere and below the exosphere.
exospehere
The exosphere is the outermost layer of our atmosphere.
Temperature
degree of hotness or coldness measured on a definite scale
Nitrogen
nonmetallic element of Group 15 [Va] of the periodic table.
Carbon Dioxide,
A colorless, odorless gas that is present in the atmosphere and is formed when any fuel containing carbon is burned.
Oxygen
a chemical element found in the air as a colorless odorless tasteless gas that is necessary for life.
altitude
the vertical elevation of an object above a surface (such as sea level or land) of a planet or natural satellite.
density
the quantity per unit volume, unit area, or unit length
air pressure
It is the force exerted on a surface by the air above it as gravity pulls it to Earth.