Azshia Flashcards
Atmosphere
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 height of an object or point in relation to sea level or ground level.
Density
the mass of a substance per unit volume
Troposphere
the lowest region of the atmosphere, extending from the earth’s surface
Stratosphere
the layer of the earth’s atmosphere above the troposphere
Mesosphere
the region of the earth’s atmosphere above the stratosphere and below the thermosphere
Thermosphere
the region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium
Exosphere
the outermost region of a planet’s atmosphere.
Temperature
the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
Nitrogen
the chemical element of atomic number 7, a colorless, odorless unreactive gas that forms about 78 percent of the earth’s atmosphere
Carbon Dioxide
a heavy colorless gas that is formed by burning fuels, by the breakdown or burning of animal and plant matter
Oxygen
a colorless, odorless reactive gas, the chemical element of atomic number 8 and the life-supporting component of the air.
air pressure
the force exerted by air, whether compressed or unconfined, on any surface in contact with it.
concentration
he action or power of focusing one’s attention or mental effort.
condition
the state of something with regard to its appearance, quality, or working order.