tectonics Flashcards
1
Q
volcano formation
A
- a volcano is formed when magma erupts onto the earth’s surface as lava through the vent in the earth’s crust
2
Q
impacts of volcanic eruption
A
- loss of life/injury
- collapse & destruction of buildings
- power & water supply damaged
3
Q
stages of volcanoes
A
ACTIVE: has erupted recently & is likely to erupt again
DORMANT: has not erupted recently but may in the future
EXTINCT: no evidence to erupt again
4
Q
earthquakes
A
earthquakes is a sudden violent shaking of ground followed by a series of vibrations or movements in the earth’s crust
5
Q
effects of earthquakes
A
- large umbers of death
- fire breaking out
- water contamination, diseases
- buildings damaged/destroyed
6
Q
preparation for earthquakes
A
- build earthquake proof buildings
- set up warning systems
- create evacuation plan
- emergency food supply
7
Q
types of plate boundaries (earthquakes)
A
- collisions
- constructive
- conservative
- destructive
8
Q
collisions plate boundary
A
occurs when two continental plates move towards each other
9
Q
constructive plate boundary
A
occurs when two plates move away from each other
10
Q
conservative plate boundary
A
occurs when two plates slide past each other
11
Q
destructive plate boundary
A
occurs when a continental plate subducts an oceanic plate
