Atmosphere 1
Which gas exists in the Earth’s atmosphere in the greatest amount?
nitrogen
Which of the following functions does the Earth’s atmosphere perform?
It protects the planet like a layer of insulation
It helps the Earth to stay warm
It helps stabilize Earth’s temperature between night and day.
The outermost layer of the Earth’s atmosphere is the:
exosphere
80% of the mass of the Earth’s atmosphere is in the:
troposphere
Weather takes place in the:
troposphere
Where is the exosphere located?
it is the outermost layer of the Earth’s atmosphere
What is the force that moves an aircraft called?
thrust
The second layer in from the outer layer of the Earth’s atmosphere is:
the thermopause
How are the gases in the thermosphere distributed?
they are very thinly spread
How thick is the mesosphere?
about 22 miles
The mesosphere is the layer of the Earth’s atmosphere at which most:
meteors burn up while entering Earth’s atmosphere
What is ozone?
a particular kind of oxygen molecule that exists in great number in the stratosphere
Why are there no regular clouds in the stratosphere?
there is no water vapor there
What is the Ionosphere
a layer of the Earth’s atmosphere that overlaps the mesosphere, the thermosphere, and the exosphere
What is the magnetosphere
a protective magnetic bubble surrounding Earth that shields it from the sun's harmful solar wind by deflecting most of its charged particles
The ozone layer is located in the:
stratosphere
What is causing global warming?
an excess of carbon in the atmosphere
Smog is a:
fog or haze combined with smoke and other atmospheric pollutants
The ozone layer is:
the cause of the greenhouse effect
located in the stratosphere
responsible for absorbing heat from the sun and keeping it in the lower levels of the Earth’s atmosphere
Earth’s atmosphere consists mainly of what two gases?
oxygen and nitrogen
What is the Troposphere?
the layer of the atmosphere closest to the surface of the Earth
It's where all weather phenomena, such as clouds and rain, take place.
what is the stratosphere
It contains the ozone layer, which absorbs most of the Sun's harmful ultraviolet (UV) radiation.
what is the Mesosphere
this is the coldest layer of the atmosphere. It's where most meteors burn up.
what is the Thermosphere
It's extremely hot due to the absorption of high-energy solar radiation, and it's where phenomena like the aurora borealis occur.
what is the Exosphere
It's a diffuse region where the atmosphere thins out and eventually transitions into outer space.