Page 1 - L-19 MM
P. 1
SAI International School
Std- 4
Social Science
Lesson -19Transport and Communication
a
d
n
o
p
t
r
c
i
at
on
i
om
C
m
n
u
s
s
on
s
L
e
19T
r
an
ROADWAYS
W A T E R W A Y S TRANSPORT RAILWAYS
WATERWAYS
AIRWAYS
TELECOMMUNICATION
POST COMMUNICATION MASS
CIONOMMUNICATION
