Instruments used to measure air pressure are called
Barometers
100
The layers of the atmosphere are classified according to changes in
temperature
100
A form of oxygen with three oxygen atoms in each molecule
ozone
200
Photochemical smog results from the interaction of pollutants in the presence of
sunlight
200
What percent of our atmosphere is made up of gases other than oxygen and nitrogen?
1%
200
Because air has mass, it exerts a force per unit area called
air pressure
200
The lowest and shallowest layer of the atmosphere is the
troposphere
200
The ozone layer protects living things on Earth from
ultraviolet radiation
300
Water vapor is water in the form of
Gas
300
The gas that is found in the greatest amount in the atmosphere is
Nitrogen
300
An aneroid barometer is different from a mercury barometer in that it
does not contain a liquid
300
The layer of our atmosphere in which weather occurs is the
troposphere
300
The ozone layer is found MOSTLY in the
stratosphere
400
Density can be determined using the formula
Density=Mass/Volume, D=M/V
400
Which gas makes up 0.038 percent of air? (1 point)
Gases in Dry Air
Gas: Percentage by Volume
Nitrogen: 78
Oxygen: 21
Argon: 0.93
Carbon dioxide: 0.038
Neon: 0.0018
Helium: 0.00052
Methane: 0.00015
Krypton: 0.00011
Hydrogen: 0.00005
carbon dioxide
400
The ____________________, or elevation, of a mountaintop is its distance above sea level.
altitude
400
The layer of the atmosphere between the stratosphere and the thermosphere is called the
mesosphere
400
What percentage of ozone is in the stratosphere?
90%
500
Which layer of the atmosphere protects Earth’s surface from being hit by most meteoroids?
mesosphere
500
What is the most abundant gas in air?
Gases in Dry Air
Gas Percentage by Volume
Nitrogen 78
Oxygen 21
Argon 0.93
Carbon dioxide 0.038
Neon 0.0018
Helium 0.00052
Methane 0.00015
Krypton 0.00011
Hydrogen 0.00005
Nitrogen
500
Harmful particles and gases in the air are known as
pollutants
500
From Earth to space, the main layers in our atmosphere are: