The study of weather processes and forecasting.
The conditions of Earth's atmosphere at a particular time & place.
Is the envelope of gases that surrounds the planet.
Is 78%, most abundant, dilutes oxygen, and prevents rapid burning of Earth's suface.
Essential to planet life
Is 21%, product of photosynthesis, and animals use this directly from the air or dissolved in water.
Used by plants in photosynthesis, helps prevent loss of heat from the Earth, and burning fuels increases the amount of CO2 in atmosphere.
Gas form of water which is invisible, amount in air varies from place to place and time to time, and plays important in weather.
What are argon, neon, helium, ozone, local pollutants?
What makes conditions on earth suitable for living things, by making O2, CO2 needed by living things, traping energy from sun, and protects earth from harmful radiation and meteroids.
Is a form of O2 that has 3 O2 atoms in each molecule instead of the usual 2.
Mass, Density, Pressure
What are the properties of air?
The amount of matter in an object.
The force pushing on an area or surface.
Mercury Barometer and Aneroid Barometer
What measures air pressure?
Balance the weight of the atmosphere against the weight of a column of liquid mercury: greater pressure forces mercury to rise.
An airtight metal box, with a thin metal disk that bends under indicate the level of pressure.
When walls push in...
When walls push out...
In. of Mercury and Millibars
What are the Units of Pressure?
Pressure increases as altitude ....
Densities decreases as air pressure ...
As temperature increases pressure .... as heating takes place, atoms move farther apart and the weight of aire is less.
As temperature decreases pressure ... as cooling takes place atoms move closer together and the weight of air is greater.
What is Falling Air Pressure?
What is rising air pressure?
Troposphere, Stratosphere, Mesosphere, Thermosphere, Magnetosphere
What are the layers of the atmosphere without the inosphere, exosphere, and Van Allen Belts?
"Turning" or "Changing"
What does "Trops" mean?
What is closet to earth, weather occurs in this layer, shallowest layer, most mass of atmosphere, and as altitude increases the temp. decreases.
"Layer" or "Spread out"
What does "Strato" mean?
Extends from top of Troposphere about 50km, planes fly in it, have jetstreams, upper part is warmer than lower, and contains ozone layer.
High wind associated w/ polar front.
What does "Meso" mean?
Is the middle layer of atmosphere, 50 to 80km above Earth, coldest zone is -100'C, protects earth from being hit w/ meteroids.
What does "Thermo" mean?
Outermost layer, temp. increases rapidly as solar energy is absorbed, up to 1800'C but would feel below 0'C, contains 2 layers.
Positively charged ions and free electrons reflect radio waves back to earth, Aurora is at poles when ions interact with air molecules to produce colors in the sky.
Highest layer of Atmosphere, gases escape into space, and satellites orbit in it.
Magnetic field surrounding the Earth, extends far into space, radiates between North and South poles, composed of protons and electrons, and protects Earth from harmful solar winds.
Van Allen Belts
Areas in the Magnetosphere w/ high concentrations of charged particles.
What affects health of humans and other living things.
Harmful substances in the air, water, or soil.
Forest Fires, soil erosion, dust storms, mold, pollens, and erupting volcanoes are what?
Farming, Construction, and Burning of Fossil Fuels
What human Activities effect air quality?
What is smoke or soot and fog?
London type Smog
Particles in coal smoke combine w/ water droplets in humid air.
Forms in sunny cities when sunlight reacts w/ pollutants such as hydrocarbons and nitrogen oxides to form brown haze.
Is in the troposphere and is a pollutant that irritates eyes, throat, lungs, and harms plants.
Nitrogen oxides and sulfur oxides combine w/ water in the air to form nitric acid and sulfuric acid which are carried to Earth in precipitation; damages plants, animals, buildings, and statues.
Environmental Protection Agency
Is a federal agency monitors air pollutants.
Air quality has ... in the U.S over the past 30yrs.
Cars and Power Plants
If we increase the number of .... and more .... ..... are increasing the air pollution.
Contains O2, CO2, traps energy from sun, protects earth from radiation
Describe how the atmosphere helps living things survive on Earth.
By hydrocarbons combined w/ nitrogen oxides to form smog. By Nitrogen oxides combining with sulfur oxides and water to form acid rain.
Explain how nitrogen oxides form acid rain and smog.