Understanding the Impact of Volcanic Eruptions on the Environment

Explore the causes of volcanic eruptions, including pressure changes, radioactive minerals, plate tectonics, hot spots, earth movement, thermal contraction, and water's role. Learn about different types of volcanicity and the landforms created by both extrusive and intrusive volcanic activity, from elevated landforms like volcanoes and volcanic islands to subsided forms like craters and calderas.

• Volcanic eruptions
• Environment impact
• Causes of volcanicity
• Types of volcanicity
• Landforms

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1. VOLCANIC ERUPTION AND ITS IMPACT ON ENVIRONMENT

2. INTERIOR OF EARTH

3. CAUSES OF VOLCANICITY 1) DECREASE OF PRESSURE

4. CAUSES OF VOLCANICITY 2) ROLE OF RADIO ACTIVE MINERALS 3)PLATE TECTONIC ACTIVITY 4) HOT SPOT

5. CAUSES OF VOLCANICITY 5) EARTH MOVEMENT 6) THERMAL CONTRAC TION 7) ROLE OF WATER

6. TYPES OF VOLCANICITY

7. LAND FORMS CREATED BY EXTRUSIVE VOLCANICITY 1. ELEVATED LANDFORM A) VOLCANO

8. LAND FORMS CREATED BY EXTRUSIVE VOLCANICITY 1. ELEVATED LANDFORM B) VOLCANIC ISLAND

9. LAND FORMS CREATED BY EXTRUSIVE VOLCANICITY 1. ELEVATED LANDFORM C) OCEANIC RIDGE

10. LAND FORMS CREATED BY EXTRUSIVE VOLCANICITY 2. SUBSIDED LANDFORM A) CRATER

11. LAND FORMS CREATED BY EXTRUSIVE VOLCANICITY 2. SUBSIDED LANDFORM B) CALDERA

12. LAND FORMS CREATED BY EXTRUSIVE VOLCANICITY 2. SUBSIDED LANDFORM C) VOLCANIC LAKE

13. LAND FORMS CREATED BY INTRUSIVE VOLCANICITY 1. SILL

14. LAND FORMS CREATED BY INTRUSIVE VOLCANICITY 2. DYKE

15. LAND FORMS CREATED BY INTRUSIVE VOLCANICITY 3. LACCOLITH

16. LAND FORMS CREATED BY INTRUSIVE VOLCANICITY 4. LOPOLITH

17. LAND FORMS CREATED BY INTRUSIVE VOLCANICITY 5. PHACOLITH

18. LAND FORMS CREATED BY INTRUSIVE VOLCANICITY 6. BATHOLITH

19. IMPACT ON ENVIRONMENT 1) RELEASE OF PRESSURE 2) CONCEPT ABOUT INTERIOR OF EARTH 3) VOLCANIC LAKE 4) FORMATION OF BLACK SOIL 5) DESTRUCTION OF MARINE ECOSYSTEM 6) DESTRUCTION OF LIFE AND PROPERTIES 7) ENVIRONMENTAL POLLUTION

20. THANKYOU THANKYOU