defenses 1
A wall
Seawall
A large wave
tsunami
how fast does a tsunami go
500 miles per hour
spiny trees
pine trees
rocks
rock armor
tectonic plate movement
Earthquakes
how high can a tsunami be
100 feet tall
cement connected together
tetrapods
a curved wall
recurved wall
lava coming from a mountain
Volcanic Eruption
how big of a magnitude does a earthquake have to be to form a tsunami
7.5 or higher
a ramp underwater that doesn't work
levee or sea dike
underwater ramp
submerged breakwater
A rock from space
Meteor
what causes a tsunami
earthquakes
to stay in top conditions they need
maintenance
trees in the water
Mangrove forest
land crumbling and falling into the ocean
landslide
another way to form a tsunami
underwater volcanic eruptions
what is another word for money
cost