Page 1 - LESSON 13 MM
P. 1
S A I I n t e r n at i on al S c h
SAI International Schoolool
Std-4
Subject- Social Science
Lesson-13 Soils of India
Soils of India
Soils of India
Alluvial Laterite
Soil Black Soil Red Soil Soil
Desret Mountain
n
u
a
i
n
t
o
M
soil Soil
a
r
E
E
r
o
h
t
t
f
e
o
e
f
h
e
h
t
t
h
e
e
a
a
s
s
a
l
l
a
e
y
y
o
t
t
o
p
p
s
s
n
a
a
a
a
l
n
t
t
n
n
e
e
r
e
s
s
e
d
d
r
t
t
l
o
o
n
n
r
r
a
t
h
h
t
h
h
c
p
p
h
w
w
h
c
i
i
s
i
s
i
t
I
t
d
i
f
i
n
n
f
e
e
d
e
e
d
I
Soil – It is defined as the top layer of the Earth on which plants and trees
d
grows.
g
a
t
r
e
w
i
o
• Formation of soil - Thee soil is formed by weathering or disintegration of
f
b
y
n
o
i
g
n
s
d
o
r
i
h
e
a
t
t
r
i
e
n
T
h
a
b
n
n
a
s
o
m
a
t
o
a
b
k
e
e
c
c
g
y
r
r
d
p
c
s
c
o
h
n
g
y
c
a
h
t
s
p a r e n t r o c k s b y p h y s i i c a l l , , c h e m i i c a l l a n d b i i o l l o g i i c a l l a g e n t s .
a
p
e
parent rocks by physical, chemical and biological agents..
p
o
e
e
n
p
c
c
n
o
u
s
s
u
c
l
l
e
e
c
e
e
e
s
s
e
r
a
a
r
r
r
A
o
m
s
s
t
e
s
t
o
e
A
l
l
s
e
r
r
e
a
a
m
s
• As a result of these processes, large rock pieces are converted into smaller
l
l
s
r
r
r
t
t
v
v
e
e
r
i
n
n
i
e
e
a
a
d
d
e
e
e
o
h
o
r
a
r
g
g
c
c
c
k
c
o
r
r
o
a
e
e
s
s
s
t
s
s
t
s
h
l
l
f
e
e
f
,
,
k
p
o
i
i
p
o
t
e
t
d
p
y
n
e
i
e
l
t
a
s
u
pieces and eventually too soil.
n
e
v
c
l
t
e
a
s
k
s
k
s
a
s
g
e
,
,
o
o
• Living organisms such as lichens, insects, microorganisms makee soil ready
i
m
s
h
h
i
l
i
i
c
c
c
c
l
n
a
s
n
a
o
o
u
u
s
m
r
e
e
r
i
i
s
h
g
h
n
n
o
c
m
o
s
s
,
s
s
s
a
a
s
r
t
g
t
,
r
n
n
g
m
c
i
i
m
m
n
c
a
a
m
i
n
a
i
c
m
r
r
s
s
s
e
e
s
for the plants to grow.
f o r t h e p l a n t s t o g r o w .
Types of soil: