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WorksheetsAtmospheric Layers
Total questions: 13
Worksheet time: 7mins
What is the purpose of Earth's atmosphere?
To protect the Earth from radiations and cosmic rays
To provide oxygen for breathing
To supply food for plants
To create weather patterns
How many main layers does the Earth's atmosphere have?
Five
Three
Four
Six
Which layer of the atmosphere is closest to Earth's surface?
Stratosphere
Exosphere
Troposphere
Mesosphere
What percentage of the air in the atmosphere is contained in the troposphere?
About 50%
About 75%
About 90%
About 65%
What is the main function of the ozone layer in the stratosphere?
To absorb harmful ultraviolet radiation
To create rain
To absorb carbon dioxide
To produce oxygen
Where do most meteors burn up when entering Earth's atmosphere?
Mesosphere
Troposphere
Stratosphere
Thermosphere
What causes the auroras that occur in the thermosphere?
The reflection of sunlight off of ice crystals
The collision of energetic charged particles with atoms
The burning up of meteors
The emission of light from stars
What is the outermost layer of Earth's atmosphere?
Exosphere
Thermosphere
Stratosphere
Mesosphere
At what altitude does the temperature in the atmosphere start to increase in the thermosphere?
Above 50 kilometers
Above 700 kilometers
Above 10,000 kilometers
Above 100 kilometers
Why does the temperature in the exosphere vary greatly?
Due to the presence of water vapor
Because of the changing distance from the Sun
Due to the thin air not transferring much heat
Because of the high concentration of ozone
Which gas is most abundant in the Earth's atmosphere?
Oxygen
Carbon Dioxide
Nitrogen
Argon
What is the primary cause of wind?
The Earth's rotation
Temperature differences in the atmosphere
Gravitational pull from the moon
Changes in atmospheric pressure
What layer of the atmosphere do weather phenomena primarily occur in?
Stratosphere
Mesosphere
Troposphere
Thermosphere
