1. What type of instrument measures seismic waves?
   

AMercalli scale

BSeismic scale

CSeismometer

DSeismogram

1. All the processes that form mountain ranges are known as
   

Aisland arcing.

Bcompressive forces.

Carch vibrations.

Dorogeny.

Student Answer: B

Answer: Incorrect

Reference:

1. _______ magma causes powerful and explosive volcanic eruptions.
   

AAndesitic

BBasaltic

CRhyolitic

DComposite

Student Answer: A

Answer: Incorrect

Reference:

1. Lava and other materials that are launched from a volcano into the air are referred to as
   

Abasalts.

Bmagma.

Cflows.

Dtephra.

Student Answer: C

Answer: Incorrect

Reference:

1. The three types of seismic waves produced by an earthquake are primary, secondary, and
   

Aelastic.

Bsurface.

Csedimentary.

Datmospheric.

Student Answer: C

Answer: Incorrect

Reference:

1. _______ describes all the processes associated with the discharge of magma, hot fluids, ash, and gases.
   

AThermal energy

BHydraulic energy

CMagnetism

DVolcanism

Student Answer: C

Answer: Incorrect

Reference:

1. Which statement best describes the Richter scale?
   

AIt's a test given to all geologists.

BIt's a numerical system that measures the smallest seismic waves during an earthquake.

CIt's named after a scientist who studied tornadoes.

DIt's a numerical rating system that measures the largest seismic waves during an earthquake.