Atmospheric Science Flashcards
On average, a normal adult takes _ breaths a minute. Every breath you take contains a combination of _.
12; gases, chemicals, solid particles, and insects
The _ is the layer of the Earth’s biomes that contains the gases that surround us.
Atmosphere
78% of the atmosphere is _ and 21% is _.
Nitrogen gas; oxygen
Layers of the atmosphere:
Troposphere (closest to Earth)
Stratosphere (contains 03 - ozone)
Mesosphere
Thermosphere (hottest)
On average, troposphere air temperature declines _ for each kilometer in altitude.
6°C
Air also contains a good amount of _.
Water vapor
The movement of water particles through the atmosphere is driven by _. The differences of warm moist air at the surface and cold dry air at high elevations causes a motion called _.
Solar energy; convective circulation
Ultimately the _ of the troposphere drive weather.
Physical properties (temperature, pressure, humidity, and wind)
Weather
The atmospheric conditions at a given time (example: 60°F); caused by solar radiation and tilt of the Earth’s axis
Climate
An area’s pattern of weather conditions (example: hot); warm fronts and cold fronts
Inversion Layers
Where temperature rises with altitude (pollution); generally associated with big cities; Hadley Cells, Ferrel Cells, Polar Cells
Air Pollution
Gases and particulate matter added to the atmosphere that either impact the climate or living organisms; can be natural (dust storms, volcanoes, forest fires)
Primary Pollutants
Pollutants that can be directly harmful or that can react to form harmful substances (example: sulfur)
Secondary Pollutants
When primary pollutants react with chemicals or components of the atmosphere to form new pollutants (example: acidic rain)
Clean Air Act 1970
Made strict air standards, imposed limits on emissions for autos, provided money for research, and allowed some people to sue for the violation of the standards