Presentation on theme: "Changing Earths Surface Rapidly. Earthquakes Earthquakes Cause Cause –Occurs when huge slabs of rock move against each other deep below the Earths surface."— Presentation transcript:
Changing Earths Surface Rapidly
Earthquakes Cause Cause –Occurs when huge slabs of rock move against each other deep below the Earths surface. –The slabs touch at a fault –A fault is a crack in the Earths crust.
Earthquakes Effect Effect –Land can drop and become destroyed. –Land can rise and become built up. –Landslides/rockslides
Hurricanes Cause Cause –Very large and violent tropical storms –Winds greater than 75 mph. –Start as small thunderstorms over warm water. Heat from the water fuels the storm. –Winds and moisture swirl upward and increase the storms strength.
Hurricanes Effect Effect –Flooding –Damage to houses and trees. –Flying debris –Landslides
Floods Cause Cause –Caused by long, steady, heavy rains or by rapid melting large amounts of snow. –The soil cannot absorb the water fast enough. –The water runs into rivers which then overflow.
Floods Effect Effect –Land is swept away from one place and deposited in another place –Damage to houses and trees.