Meteorology A ( fall 2015) Flashcards
What percentage of gas in the air is Nitrogen?
78%
What percentage of gas in the air is Oxygen?
21%
What percentage of gas in the air is Argon?
0.93%
What percent of gas in the air is Carbon Dioxide?
0.03%
Heat transrer between two substances that are in contact is called
conduction
As you rise upwards in the atmosphere, air pressure
decreases
Isobars are lines on a map joining places that have the same
air pressure
The ozone layer protects living things on earth from
ultraviolet radiation
The layers of the atmosphere are classified according to changes in
temperature
Most air pollution comes from
burning fossil fuels
The layer of our atmosphere in which weather occurs is the ____
troposphere
What is the greenhouse effect?
a gradual increase in the temperature of the atmosphere
What keeps us from being crushed by the weight of the air ?
We are pressurized inside to match the outside air pressure
What is the lowest, shallowest layer of the atmosphere?
troposphere
What are scientists that study weather called?
Meteorologists
Instruments used to measure air pressure are called…
barometers
What are the two main parts of a psychrometer called?
a wet-bulb thermometer and a dry-bulb thermometer
What are the main layers in our atmosphere, from Earth to space
Troposphere
stratosphere
mesosphere
thermosphere
True or false: The higher you go the higher the air pressure?
False
How does the heat from the sun reach you?
radiation
Convection takes place because…
cold air is more dense than warm air.
Most of Earth’s incoming ultraviolet radiation is absorbed by?
the ozone
Places shown on a weather map that have the same temperature are connected by…
isotherms
What is the relative humidity when air reaches the dew point?
100%
The less mass in a given volume of air, the
less dense the air
What is the formula for determining density?
density=mass/volume
What layer of the atmosphere is the ozone layer found?
stratosphere
What gas do you from the air for metabolism of food into energy?
Oxygen
What is relative humidity measured by?
psychrometer
Which layer of the atmosphere protects the Earth’s surface from being hit by most meteoroids?
mesosphere
What is the waste gas you give off form the metabolism if food into energy?
Carbon Dioxide
True or False: The higher you go the less air you have above you?
True
What is the freezing point of water on the Celsius scale?
0 degrees
Changes in air pressure would make a helium balloon______ as it goes up
expand until it pops
Where does the air that pressure that is on the roof of your house come from?
all of the air above your roof
