how many layers does the atmosphere have?
5 layers
wich is the layer that protects us from uv rays?
ozone layer
which is the most abundant gas in the atmosphere?
nitrogen
in wich layer the artificial satellites are located?
on the exosphere
which is the coldest layer of the atmosphere?
the mesosphere
how is called the phenomena wich is the result of water condensation on surfaces?
dew
who are responsible for acid rain?
air pollutants
What is the name of the state where the particles move in all directions?
gaseous state
where oxygen is produced?
in photosyntesis
what is called the cause of the greenhouse effect is increasing?
global warming
What can cause a hole in the ozone layer?
effects on skin
what means CFC?
chloro fluor carbon
