Sample Tests

Question 1:

At what boundary within the earth do we believe the mantle plumes (hot spots) originate?

Answer: Mantle -Outer Core Boundary 

Question 2:

Which of the following igneous rocks has the lowest silica content?

Answer: Ultramafic

Question 3:

The majority of earthquakes recorded are of high magnitudes(7 or above using the Richter scale)

Answer: False

Question 4:

What is the name for the basaltic lava flow that has a ropy, folded surface?

Answer: Paphoehoe

Question 5:

 Thrust Faults can be differentiated from reverse faults by the angle of fault dip.

Answer: True

Question 6:

What is soil liquefaction?

Answer:  The process by which water-saturated, unconsolidated sediments  are transformed into a substance that acts like a liquid, often caused by earthquakes.

Question 7:

 Do Intraplate earthquakes occur often?

Answer: No 

Question 8:

 This rock takes up most of the Hawaiian Islands

Answer : Granite

Question 9:

This natural hazard costs the most in terms of damage that was dealt.

Answer: Landslides

Question 10:

Smaller pieces of rock that are broken off by physical weathering are called:

Answer: Clastic

Question 11:

The layer of accumulated sediment on the ocean floor is thinnest at the mid-ocean ridge.

Answer: True

Question 12:

What process creates sedimentary basins?

Answer: Subsidence

Question 13:

Does rifting in continental crust result in sea-floor spreading?

Answer: Yes

Question 14:

What is one of the main processes that drive plate tectonics?

Answer:  Mantle Convection

Question 15:

The arrival of seismic body waves are recorded after the arrival of surface waves at a seismograph station.

Answer: True

Question 16:

The presence of water will decrease the melting temperature of the rock.

Answer: True.

Question 17:

One of the pieces of evidence provided by Alfred Wegener in support of his hypothesis of continental drift was the existence of marine magnetic anomalies.

Answer: False

Question 18:

Extrusive rocks have larger crystals than intrusive rocks.

Answer: False

Question 19:

A trough-like fold is a syncline. 

Answer: True

Question 20:

What are the 3 main types of sediments?

Answer: clastic, biochemical, chemical.

Question 21:

What is a gap in the rock record due to non-deposition or erosion?

Answer: Unconformity.

Question 22:

Which of the following tectonic settings will be coolest at 30-km depth?

Answer: Stable continental lithosphere.

Question 23:

 ___________ is caused by earthquakes.

Answer: Tsunamis.

Question 24:

Metamorphic rocks result from the re-crystallization of existing rocks while they are still in a solid state.

Answer: True

Question 25:

How do you improve slope stability?

Answer: Decreasing the slope angle.

Question 26:

Is Hydrogen in the top 8 most abundant elements in Earth?

Answer: No

Question 27:

Does the temperature of magma influence its viscosity?

Answer: Yes

Question 28:

List 3 classes of rocks.

Answer: Metamorphic rocks, igneous rocks, sedimentary rocks.

Question 29:

What is a reverse fault?

Answer:  A fault where the footwall is displaced downwards relative to the hanging wall.

Question 30:

How old is the oldest rock on Earth?

Answer: 4.4 Billion Years old.

Question 31:

Is the Theory of Evolution used in relative dating?

Answer: No

Question 32:

Is oxygen the most abundant element on Earth?

Answer: Yes.

Question 33:

This rock has an aphanitic texture, containing amphibole, biotite, and sodium feldspar.

Answer: Andesite

Question 34:

Is Andesite volcanic?

Answer: Yes

Question 35:

The magma that creates Andesite has a temperature of 800 degrees Celsius

Question 36:

Why did Charles Darwin think that the principle of Faunal Succession worked?

Answer:  Because the organisms had evolved through many decades.

Question 37:

What is the viscosity of Andesite?

Answer: Somewhat Intermediate

Question 38:

Any substance where the atoms are arranged in a regular geometric pattern is what?

Answer: Crystalline Substance

Question 39:

What is the physical property of minerals?

Answer: Luster

Question 40:

The first geologist to suggest that Earth was very ancient was whom?

Answer: James Hutton.