Definitions 1
An area in Earth’s crust where tectonic plates meet
fault
An overflow of water that spreads over land that is not normally covered by water
Flood
How have humans changed landscapes?
By cutting down trees and creating towns and cities
Where do earthquakes typically occur?
Near plate tectonic boundaries
What can excess snowmelt lead to?
Flooding
A shift that releases pressure on Earth’s crust that causes the crust to shake
Earthquake
A long, dry period of weather
Drought
Cutting down trees leads to what?
Erosion and a potential for more flooding
DOUBLE JEOPARDY QUESTION!
What is the name of the main tectonic boundary in California?
San Andreas
Excess water and loose soil can lead to what?
mud/land slide
A massive wave created by an earthquake
Tsunami
A massive amount of snow, ice, and rocks suddenly sliding down a slope
Avalanche
What are two reasons why flooding may occur
Heavy rain and overflowing rivers and streams
A damaged dam can lead to what other disaster?
Flood
Name two ways we can reduce the impact of volcanic eruptions.
Create better warning systems to warn people of natural hazards and ann extra supports to the roofs of houses and buildings
An opening in Earth’s crust that allows superheated rock and other materials below the crust to reach the surface
Volcano
A large amount of rock or soil sliding down a slope
land/mud slide
What is the usual cause of tsunamis?
An earthquake
What are two hazards from a volcano?
Falling ash and lava flows
Name two ways we can reduce the impact of floods.
Create better warning systems to warn people of natural hazards, design a system to send extra water from a river to a holding pond, build house in low laying areas on reinforced stilts
The release of material from a volcano
Eruption
A fire that burns out of control
Wildfire
Name two out of the three effects of a tsunami
Destruction of buildings, roadways being washed away, flooding, loss of life
What two things can farmers do to lessen the effects of floods?
Plant trees to suck up water and plant crops higher up
Name two ways we can reduce the impact of earthquakes
Create better warning systems to warn people of natural hazards, make buildings and bridges out of materials that limit shaking, build houses in low areas on stronger bases