2. WHAT IS LITHOSPHERE??
It is the rigid outer layer of earth.
It has an average thickness about 75km
Came from the greek lithos which means rock.
the lithosphere comprises a number of plates
The motion of lithospheric plate is known as
plate tectonics
3. PARTS OF LITHOSPHERE
The five main parts of lithosphere are:
Crust
mantle
Asthenosphere
Core
Transition zone
There would be no lithosphere if any of
The part is missing
.
4. WHY IS IT USEFUL??
The lithosphere serves as a source of minerals.
It is also the major source of fuels.
Plants and animals grow on lithosphere.
It has water bodies which are essential for
survival.
5. QUIZ TIME
How much thickness does lithosphere have in average?
75km
Name any 2 parts of lithosphere?
Crust mantle Asthenosphere Transition zone Core
What is the average depth of lithosphere?
650km
What is the average temperature in lithosphere?
1000C
