UNIT 3BThe Lithosphere

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QUESTION 1• Who is considered to be the “Father

of Modern Geology”?A. Harry HessB. James HuttonC. Alfred WegenerD. Charles Lyell

QUESTION 2• What law or principle states un-deformed

sedimentary rock layers are older on the bottom and younger on the top?

A. Law of SuperpositionB. Law of Cross-Cutting RelationshipsC. Principle of Original HorizontalityD. Principle of Unconformities

QUESTION 3• One varve represents how many years

of sediment deposition in glacial lake beds?

A. 1B. 2C. 5D. 10

QUESTION 4• New oceanic crust is continuously

formed at which of the following locations?

A. trenchesB. convergent plate boundariesC. subduction zonesD. mid-ocean ridges

QUESTION 5• Oceanic crust mainly consists of

which igneous rock?A. graniteB. andesiteC. basaltD. rhyolite

QUESTION 6• Continental crust mainly consists of

which igneous rock?A. graniteB. andesiteC. basaltD. rhyolite

QUESTION 7• The San Andreas Fault in California

occurs along which type of plate boundary?

A. convergentB. divergentC. transformD. normal

QUESTION 8• What is the largest division of

geologic time?A. eonB. eraC. periodD. epoch

QUESTION 9• Which element was found in abundant

proportions in rock layers approximately 65 MYA providing evidence for an asteroid impact resulting in dinosaur extinction?

A. IronB. SulfurC. IridiumD. Boron

QUESTION 10• Who formed the idea of sea-floor

spreading?A. Harry HessB. James HuttonC. Alfred WegenerD. Charles Lyell

QUESTION 11• The majority of Earth’s mass and

volume are contained within which layer?

A. crustB. mantleC. outer coreD. inner core

QUESTION 12• The two elements making up the

Earth’s core includeA. H and HeB. Si and OC. Fe and NiD. Mg and Ir

QUESTION 13• The plastic, silly-putty like layer of the

Earth on which the lithospheric plates are constantly in motion is called the

A. lithosphereB. continental crustC. oceanic crustD. asthenosphere

QUESTION 14• The average speed of P-waves in

Earth’s crust isA. 1.4 km/sB. 1.6 km/sC. 4.1 km/sD. 6.1 km/s

QUESTION 15• Which type of lava has a rope-like

texture and looks like dripping candle wax?

A. AaB. PahoehoeC. BlockyD. Pillow

QUESTION 16• Which type of lava has a brittle crust

formed on top of underlying molten material?

A. AaB. PahoehoeC. BlockyD. Pillow

QUESTION 17• Which type of volcano consists of

mainly non-explosive eruptions?A. Cinder coneB. Composite volcanoC. Shield volcanoD. Stratovolcano

QUESTION 18• Which of the following is not

considered to be a tectonic plate?A. PacificB. NazcaC. ArabianD. Atlantic