SAVE SOIL SAVE WORLD

1. .

2.  Any natural mass of mineral matter that
makes up the Earth’s crust is called a ‘rock’
 Rocks are made up of one or more minerals
that have been cemented together, squeezed
and heated, or melted and cooled.
 Rocks are divided into three main groups
1.IGNEOUS
2.SEDIMENTARY
3.METAMORPHIC

7.  Weathering is the process in which the
texture and composition of rocks and
minerals change after being exposed at the
earth surface.
 Weathering Agents :
 Water of rivers, lakes, Oceans, wind along
with temperature fluctuations.

8. 1. Climate
2.Type of rock
3.Topography
4.Vegetation
5.surface area

9. Mechanical
Chemical
Biological

10. Soil is a natural
resource is the most
important layer of the
earth crust. Its depth
is not more than 1 to 3
meters.

11. Soil formation is depended upon weathering
and three additional process.
1.Organic activity
2.Leaching and precipitation
3.Eluviation & Illuviation

12. 1.Parent Rock
2.Climate
3.Relief
4.Time

13. The decayed organic matter in soil is
called humus.