ppt practicum

1. BOSMI C T
SOCIAL SCIENCE
16914303009

2. UNIT 2
THE EARTH WHICH
SUPPORT MAN

3. VOLCANOES
Volcanoes are caused when molten rocks
flows out to the earth surface through fissures that
are caused due to the movement of plates.

4. Volcanic Mountain

5. Volcanic Eruption
Some volcanoes erupt the lava out with a
great explosion and some others, silently.

6. TYPES OF VOLCANOES
Based on the chances of eruption the volcanoes
are classified in to three.
1.Active
2.Exinct
3.Dormant

7. 1. ACTIVE VOLCANOES
Those that frequently erupt.
example: Mount Etna in Italy.

8. 2.EXTINCT VOLCANOES
Active at a time.But will not erupt again.
example: Kilimanjaro in Africa.

9. 3.DORMANT VOLCANOES
Those that have erupted earlier and not
active in the recent past. But can become active.
example: Vesuvius in Italy.

10. MOUNTAINS
An uplifted portion of the earths surface is
called a Hill or Mountains.

11. VARIOUS MOUNTAINS
Mountains are divided into four on the basis of
their origin.
1.Fold mountains.
2.Block mountains.
3.Relict mountains.
4.Volcanic mountains.

12. 1.Fold Mountains
Forms as a result of the faulting on the rocks.
example: Himalayas, Alps

13. 2.Block Mountain
Forms as a result of the faulting on the
rocks.
Example: Black Forest.

14. 3.Relict Mountain
Long term wealth oring on the old mountain.
example: Aravally.

15. 4.Volcanic Mountain

16. Mount Abu

17. EROSION

18. RUNNING WATER

19. ‘V’ SHAPED VALLEY

20. WATER FALL

21. FLOOD PLAIN

22. MEANDERS

23. DELTA

24. THANKYOU