General
True or false, a magnitude of 8 is stronger than a magnitude of 9.
False.
What are the two types of techtonic plates.
Oceanic, and continental.
A ridge push is when...
New matriel pushes older mteriel.
The mantle is mostly made of...
Magma
The earthquake can be detected by what artificial device.
A seismometer or a seismogragh.
True or false, all techtonic plates move at the same speed.
False, normally techtonic plate move 1-15 cm every year.
Eathquakes happen the most on...
Techtonic plates
The mantle consists of what percent of earths volume *Try to make your guess as close as you can.
84%, any answer between 50, 90% counts s a correct answer.
Why does a slab pull happen.
A slab pull happens because of gravity and subduction.
What is a fault
A fault is when a rock with energy breaks creating a earthquake.
A convergent plate bondary is when two plates...
Collide!
A large majority of earths mantle is made of...
Magma
Who first came up with techtonic theory (theory of plates).
Alfred Wegener.
Where do earthquakes happen the most?
on techtonic plates
Decribe what mantle convection is.
Mantle convection is when cooler materiel sinks and hotter materiel rises.
The mantles heat depending on location can vary from... A: 50-100 Celcious B: 200-750 Celcious C: 1000-3700 Celcious D: 8000-15700 Celcious
C, the mantle is made almost completly by magma.
What structure does convergent plate bondarys create.
They create deep sea trenches.
Which earthquake wave is the fastest. (S, waves, P waves, Surface waves )
Use their full name.
Primary waves
What is a reverse fault and whta structure does it create.
reverse fault is when rock is squeezed together and one block overlaps the other, this creates mountains.
How many layers of the mantle are there.
Seven