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dd

Terms in this set (20)

The troposphere
the stratosphere
the mesophere
the thermosphere
the exosphere
name the atmospheres from earth to space.
is a layer of great concentration of ozone molecules about 20 km to 40 km above the surface of the Earth.
ozone layer
Nitrogen and oxygen
what makes up 99% togetther of the ozone layer
78%
How much does the nitrogen layer make up of
21%
How much does oxygen make up of
4%
How much does humidity and water vapor make up of
carbon dioxide, methane, water vapor, and ozone.
important natural gasses
Particles of dust, soil, fecal matter, metals, salt, smoke, ash, and other solids make up a small percentage of the atmosphere and are called
particulates.
starting points (or nuclei) for water vapor to condense on and form raindrops.
Some particles are pollutants.
what does Particles provide............
The cooler air then sinks down, because it is denser than the air beneath it.
convection.
A change in temperature with distance is called a
temperature gradient.
The atmosphere has different properties at different elevations above sea level,
altitudes.
The force of the air weighing down over a unit of area is known as its atmospheric pressure
air pressure
The molecules inside our bodies are pushing outward to compensate.
Why are we not crushed
a batch of air that has nearly the same temperature and humidity.
air mass
An air mass acquires these characteristics above an area of land or water known as its
source region.
are lines of equal average air pressure at sea level. Closed isobars represent the locations of high and low pressure cells.
Isobars
cumulonimbus cloud
what cloud is a tornado cloud
Average wind speed is about 177 k/h (110 mph), but some winds are much faster.
how much is the average speed for tornados.
fujita scale
what scale do we use to measure tornados
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