Trophosphere
The lowest layer of Earth's atmosphere
Stratosphere
The second-lowest layer of Earth's atmospere
Mesosphere
The layer of Earth's atmosphere immediately above the stratosphere
Thermosphere
The outermost layer of Earth's atmosphere
Ionosphere
The lower part of the thermosphere
Exosphere
The outer layer of the thermosphere
The middle layer of the Earth's atmoshere is the ___.
mesosphere
The lower layer fo the thremosphere is the ___.
ionosphere
The upper region of the stratosphere is warm because energy from the sun is absorbed by the ___.
ozone layer
The ___ is thicker over the equator than over the poles.
troposphere
The exosphere is the outer layer of the ___.
thermosphere
The ___ contains almost all the mass of the atmosphere.
troposphere
The troposphere is thickest over the ___.
equator
Most meteoroids burn up in the ___.
mesosphere
Water forms thin, feathery clouds of ice at the top of the ____.
troposphere
The ____ is the upper layer of the thermosphere.
exonosphere
The temperatuer of the upper stratosphere is ___ than the lower stratosphere
warmer
The ___ contains the ozone layer.
stratosphere
Which layer of the atmosphere has no definite outer limit?
thermosphere
In which layer does Earth's weather occur?
troposphere
Which layer is just above the stratosphere?
mesosphere
In which layer can air temperatures reach 1800 degrees celsius?
thermosphere
Scientists divide Earth's atmosphere into four main layers, classified according to changes
in __.
temperature
The name of the molecule that is made up of three oxygen atoms is ____.
ozone