SCIN 138 SCIN138 Final Exam (APUS)

SCIN 138 Final Exam (APUS)

Final Exam (timed and single access)

Question 1 of 50 2.0/ 2.0 Points

Lithospheric plates 'floating' on the asthenosphere is a condition called ____, which is similar to wood floating on water.

Question 2 of 50 2.0/ 2.0 Points

A geologist can determine the amount of time represented by a single layer of sedimentary rock by measuring its thickness.

Question 3 of 50 2.0/ 2.0 Points

Rank these chemical substances in size from largest to smallest.

Question 4 of 50 2.0/ 2.0 Points

Identify this very common mystery mineral found in many igneous and metamorphic rocks: hardness of 5.5, two cleavage directions (intersecting at 60 and 120 degrees), nonmetallic luster, specific gravity = 3.3, and dark green to black color.

Question 5 of 50 2.0/ 2.0 Points

geologic formationGeologic folding where large areas of the crust are warped upwards, create formations such as the figure below, known as ____________.

Question 6 of 50 2.0/ 2.0 Points

Fusion is a nuclear reaction in which

Question 7 of 50 2.0/ 2.0 Points

deformed rockWhen rocks are subjected to stresses beyond their elastic limit they can permanently deform, such as those in the figure below. This is known as ____________.

Question 8 of 50 2.0/ 2.0 Points

Identify this very common mystery mineral, which is almost always present in light colored rocks and sandstones: hardness of 7, no cleavage, exhibits conchoidal fracture, glassy luster.

Question 9 of 50 2.0/ 2.0 Points

Rocks: In this image, these rocks on the desert floor indicate that the wind was blowing ______.

Question 10 of 50 2.0/ 2.0 Points

Fragments of unmelted rocks that are sometimes incorporated in magma are known as _______.

Question 11 of 50 0.0/ 2.0 Points

The basic difference between gymnosperm and angiosperm, is the development of _____in the latter.

Question 12 of 50 2.0/ 2.0 Points

In which of these specific areas would you expect a speleologist to conduct their research?

Question 13 of 50 2.0/ 2.0 Points

Mass extinctions in geologic history are attributed to many possible causes. What from the list below is a proposed cause?

Question 14 of 50 2.0/ 2.0 Points

Sedimentary rocks often preserve clues about the environment in which the sediment was deposited. Which of these answers would best do that?

Question 15 of 50 0.0/ 2.0 Points

Depending on pressure, glacial ice exhibits two forms of behavior:

Question 16 of 50 2.0/ 2.0 Points

Which of the following is a product of glacial deposition?

Question 17 of 50 2.0/ 2.0 Points

Divergent margins only occur between ocean plates (i.e., mid-ocean ridges), and thus rifting never occurs within continental crust.

Question 18 of 50 2.0/ 2.0 Points

Which of these minerals is not a silicate?

Question 19 of 50 0.0/ 2.0 Points

What is a positive feedback cycle in a system?

Question 20 of 50 2.0/ 2.0 Points

A continuous line on a topographic map that connects points of equal elevation and never cross each other, creating a two-dimensional representation of surface topography, are known as _____________.

Question 21 of 50 2.0/ 2.0 Points

The earliest skeletal animals were arthropods in the Cambrian Period. From the list below, identify which is NOT an arthropod.

Question 22 of 50 2.0/ 2.0 Points

The terms bituminous, lignite, and anthracite are all directly associated with

Question 23 of 50 0.0/ 2.0 Points

By definition, an aquifer is a body of rock or regolith that contains an unlimited supply of groundwater.

Question 24 of 50 0.0/ 2.0 Points

Which of the following is NOT characteristic of rocks undergoing rapid weathering?

Question 25 of 50 2.0/ 2.0 Points

Slaty cleavage, such as that exhibited in the figure of slate below, has developed as a result of ___________ metamorphism.

Question 26 of 50 2.0/ 2.0 Points

For the figure below, a possible explanation for the stratigraphy at site 3, in which unit E sits directly on top of C is stratigraphic profile

Question 27 of 50 2.0/ 2.0 Points

The Richter scale is logarithmic, which means that each unit increase on the scale corresponds to a 2-fold increase in the amplitude of the wave signal.

Question 28 of 50 0.0/ 2.0 Points

Chose the CORRECT statement regarding volcanic hazards.

Question 29 of 50 2.0/ 2.0 Points

Low-grade metamorphism of basalt, while water is present in the pore space, produces a beautiful green, chlorite-filled rock with pronounced foliation known as ___________.

Question 30 of 50 2.0/ 2.0 Points

For the block diagram below, which of the following statements is (are) true? block diagram

Question 31 of 50 0.0/ 2.0 Points

All of the following are indirect forms of solar energy EXCEPT

Question 32 of 50 2.0/ 2.0 Points

Choose the INCORRECT statement regarding cooling and crystallization of igneous rocks.

Question 33 of 50 0.0/ 2.0 Points

Which of the following is NOT a credible hypothesis for the rapid diversification of Cambrian life?

Question 34 of 50 0.0/ 2.0 Points

In your work as a field geologist for the West Virginia Geological Survey you are currently mapping the Morgantown Quadrangle. The best place to gather geologic information for this task is ___________.

Question 35 of 50 0.0/ 2.0 Points

The San Andreas fault is a convergent plate margin where the Pacific plate subducts beneath the North American plate, and that is why there are so many powerful earthquakes along this fault.

Question 36 of 50 2.0/ 2.0 Points

Limestone exposed to prolonged temperatures of 500°C will eventually ___________.

Question 37 of 50 2.0/ 2.0 Points

If you know the half-life of a radioactive isotope that occurs in an igneous rock, what must you measure to determine the age of the rock?

Question 38 of 50 0.0/ 2.0 Points

Which of the following is not a significant natural cause of climate change?

Question 39 of 50 2.0/ 2.0 Points

You are drilling a water well and want the highest water flow rate possible. Thus, the best aquifer for producing water would have

Question 40 of 50 2.0/ 2.0 Points

Diamonds are incorporated in solidified magma called _______ that originates deep within Earth.

Question 41 of 50 0.0/ 2.0 Points

Why does the accumulation of salt in the oceans NOT provide a means to estimate how long the oceans have existed?

Question 42 of 50 2.0/ 2.0 Points

Weathering and erosion are related, but not the same thing. Which of the following is true?

Question 43 of 50 0.0/ 2.0 Points

You come across a sedimentary deposit containing mostly fine sand and dust with little organic evidence. Cross bedding is evident. You determine the sedimentary environment to be:

Question 44 of 50 2.0/ 2.0 Points

If you are drilling a water well for your new home and don’t want to install a pump to lift the water to the surface, you would drill into and finish your well to produce from

Question 45 of 50 0.0/ 2.0 Points

Minerals may become concentrated into deposits by all of the following processes EXCEPT

Question 46 of 50 0.0/ 2.0 Points

Choose the pair of volcanic concepts or term that is INCORRECTLY matched.

Question 47 of 50 2.0/ 2.0 Points

A collection of _____ elements make more than 99% of Earth’s crust by weight?

Question 48 of 50 0.0/ 2.0 Points

The Ediacaran Period of geologic time is important because

Question 49 of 50 0.0/ 2.0 Points

In general, feldspars chemically weather to clay. What happens when a rock predominately made of calcite (limestone, for example) weathers?

Question 50 of 50 2.0/ 2.0 Points

Chemical weathering would be most analogous to which process?