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27 Cards in this Set

  • Front
  • Back
Is the condition of Earths atmosphere at a particular time and place.
is the envelope of gases that surrounds the planet.
what is the atmosphere made up of?
nitrogen, oxygen, carbon dioxide, water vapor, and many other gases
is a form of oxygen that has 3 oxygen atoms in each molecule instead of the usual two
Water Vpaor
Water in the form of a gas
Why is the earth suitable for living?
1. It contains oxygen and other gases that you need and other living things need to survive.
2. It traps the warmth and liquid water that we need to live.
3. It protects us from living radiation.
the amount of mass in a given volume of air
the force pushing on an area of surface
air pressure
is the result of weight of a column of air pushing down on an area.
is the instrument that is used to measure air pressure.
2 types of barometers
mercury barometer and aneroid barometer
mercury barometer
consists of a glass tube at the bottom end and partially filled with mercury.
aneroid barometer
has an airtight metal chamber
or elevation is the distance above sea level the average level of the surface of the oceans.
4 main layers of the atmosphere
troposphere, stratosphere, mesosphere, thermosphere
how are they classified?
by temperature
where we live. this is where earths weather occurs
is the 2nd layer of the atmosphere and contains the ozone layer
is the layer of the atmosphere that protects earths surface from being hit by meteoroids
the outermost layer of the earths atmosphere. it contains the ionosphere and the exosphere
radio waves are reflected
where the satelites are
harmful substances in the air, water and soil
natural pollutants
forest fires, dust storms, soil erosions
man made pollutants
burning fossil fuels, cars, trucks and plains
photochemical smog
the brown haze that developes in the sunny cities. it is formed by the action of sunlight on pollutants such as hydrocarbons and nitrogen oxides
acid rain
rain that is naturally slightly acidic, but rain that contains more acid than normal is known as acid rain.