PPT: Soils of India | Social Studies for Class 4 PDF Download

 Page 1


O U R
S O I L S
Page 2


O U R
S O I L S
WHAT IS SOIL?
Soil is the upper layer of the
earth composed of loose
surface material. 
It is a mixture of many
substances, including many
minerals, remnants of plants
and animals, water, and air.
It is the most fundamental
resource of our country.
Page 3


O U R
S O I L S
WHAT IS SOIL?
Soil is the upper layer of the
earth composed of loose
surface material. 
It is a mixture of many
substances, including many
minerals, remnants of plants
and animals, water, and air.
It is the most fundamental
resource of our country.
HOW IS SOIL
FORMED?
Soil is composed of rock
fragments, salt, sand, clay,
and organic matter from
plants and animals.
Natural processes break down
rocks into smaller particles
that mix with organic material
over time to form soil.
Page 4


O U R
S O I L S
WHAT IS SOIL?
Soil is the upper layer of the
earth composed of loose
surface material. 
It is a mixture of many
substances, including many
minerals, remnants of plants
and animals, water, and air.
It is the most fundamental
resource of our country.
HOW IS SOIL
FORMED?
Soil is composed of rock
fragments, salt, sand, clay,
and organic matter from
plants and animals.
Natural processes break down
rocks into smaller particles
that mix with organic material
over time to form soil.
Factors like water, wind,
and temperature changes
aid in soil formation.
Soil is transported to various
locations by water and
wind.
Soil is crucial for plant
growth as it provides
support and water retention,
benefiting both plants and
groundwater.
Page 5


O U R
S O I L S
WHAT IS SOIL?
Soil is the upper layer of the
earth composed of loose
surface material. 
It is a mixture of many
substances, including many
minerals, remnants of plants
and animals, water, and air.
It is the most fundamental
resource of our country.
HOW IS SOIL
FORMED?
Soil is composed of rock
fragments, salt, sand, clay,
and organic matter from
plants and animals.
Natural processes break down
rocks into smaller particles
that mix with organic material
over time to form soil.
Factors like water, wind,
and temperature changes
aid in soil formation.
Soil is transported to various
locations by water and
wind.
Soil is crucial for plant
growth as it provides
support and water retention,
benefiting both plants and
groundwater.
WHAT IS SOIL
FERTILITY?
Soil fertility is the ability of the
soil to help in the growth of
plants.
Manure and fertilizers are
added to the soil to increase its
fertility.
Fertile soil produces more
crops.