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Earthquakes
Earthquakes
Volcanoes
Volcanoes & Geo Time
Geologic Time
100
The force at reverse faults that squeeze
What is compression
100
The forces that causes slippage
What is shear
100
Hawaii is made up of volcanoes due to
What are hot spots
100
Mt St Helens is an example of a
What is composite volcano
100
Humans appeared in the Cenozoic Era about how long ago
What is 140,000 years ago
200
Faults caused by shear forces
What is strike slip
200
The point in Earth's interior where the energy release of the earthquake occurs is
What is the focus
200
Many active volcanoes form around the edge of the Pacific Plate forming
What is the Pacific Ring of Fire
200
One factor that determines whether a volcano eruption will be quiet or explosive is
What is the type of silica, amount of water and trapped gassess trapped
200
A gradual change in life forms through time is called
What is organic evolution
300
The stress that causes stretching and elongation
What is tension
300
The point on Earth's surface directly above the earthquake's focus is the
What is epicenter
300
As lava flows onto Earth's surface, it hardens quickly because it
What is it cools
300
Hot spots are found here
What is in the middle of the plate
300
A theory proposed by Charles Darwin explains the survival of the fittest
What is natural selection
400
Once elastic limit of rocks is passed, they break and move along surfaces called
What is a fault
400
These waves are the first to reach a seismograph after an earthquake
What are primary waves
400
Kilauea in Hawaii is the world's
What is most active volcano
400
The largest intrusive igneous rock is
What is a batholith
400
The first life form of Precambrian time is thought to be
What is cyanobacteria
500
Most earthquakes occur
What is along plate boundaries
500
The most destructive seismic waves are
What are surface waves
500
This volcano is made of tephra
What is a cinder cone
500
A dominant life-form that evolved during the Mesozoic Era is
What are dinosaurs
500
Humans appeared and live in the Cenozoic Era how long ago
What is 140,000 years ago