tectonics, earthquakes and Volcanoes review

Which type of event often occurs along transform fault boundaries? 

• volcanoes
• earthquakes
• sea-floor spreading
• mountain building

In the image, which type of boundary is shown? Hint: its located in the state of California. 

• divergent
• convergent
• transform fault

The image shows a dormant volcano. These types of volcanoes are the most explosive and grow to be very tall. Which type of volcano is this?

• shield volcano
• cinder cone volcano
• composite/stratocone volcano

If the focus of an earthquake occurs beneath the sea floor, as the seismic waves travel through the ocean, they create a massive and destructive

• epicenter
• tsunami
• focus
• mountain

When molten rock reaches the Earth's surface, comes out and begins to cool, it is known as

• lava
• mantle
• magma
• crater

What is the main cause of most earthquakes?

• human activity
• hurricanes
• changes in temperature in Earth's mantle
• pressure deep within the Earth (from rocks crashing) that is being released

What instrument is used to detect the magnitude of earthquakes?

• barometer
• electrograph
• seismograph
• pictograph

What causes tectonic plates to move?

• ocean currents
• convection currents in the mantle
• volcanoes
• the Coriolis Effect

The upper layer of the mantle is said to be thicker than the lower mantle, but not solid rock like crust. The tectonic plates rest on this layer and it is responsible for the movement of those plates. What is the name of this layer?

• crust
• asthenosphere
• outer core
• inner core

The image shows the Mid Atlantic Ridge. Which type of boundary occurs at this ridge where the ocean floor is spreading apart? 

• convergent
• divergent 
• transform fault