Page 8 - LAYERS OF ATMOSPHERE AND ITS IMPORTANCE

5. EXOSPHERE :

s
t
e
h
h
T
i
i
s
mo
r
s

t
o

u
e
t
• •This is the outermost
f
o
t

e
r
l
t
a
sp
mo
h
h

e
y
layer of the atmosphere
e
a
e
r

where molecules and
w h e r e mo l e c u l e s a n d
atoms escape into
a t o ms e s c a p e i n t o
s p a c e .
space.
• • Beginning at 480 km

g
k
n
B
4
8
0

a
t
m
n
e
i
n
i
g
v
h
,
r
t
h

t
a
t

e
e
b
E
s
above the Earth, this

i
a
h
o

layer then extends into
l a y e r t h e n e x t e n d s i n t o
t h e sp a c e .
the space.
i
s
r
e

y
i
a

r

h
T
• •The air in this layer is
e
i

s
a
l
i
n

h
t
very thin. No air exists
v e r y t h i n . N o a i r e x i st s
beyond this layer.
b e y o n d t h i s l a y e r .
•