Phy-110 Assignment 5

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1. A ________ is a well-tested and widely accepted view that best explains certain scientific observations. Answer
| | hypothesis |
| | generalization |
| | law |
| | theory |
2 points  
Question 2
1.  
What are the basic differences between the disciplines of physical and historical geology? Answer
| | physical geology is the study of fossils and sequences of rock strata; historical geology is the study of how rocks and minerals were used in the past | | | historical geology involves the study of rock strata, fossils, and geologic events, utilizing the geologic time scale as a reference; physical geology includes the study of how rocks form and of how erosion shapes the land surface | | | physical geology involves the study of rock strata, fossils, and deposition in relation to plate movements in the geologic past; historical geology charts how and where the plates were moving in the past | | | None of thesephysical geology and historical geology are essentially the same. | 2 points  

Question 3
1.  
The relatively stable interior portion of a continent is known as a ________. Answer
| | craton |
| | shield |
| | platform |
| | belt |
2 points  
Question 4
1.  
The most prominent features on the ocean floor are the ________. Answer
| | deep-ocean trenches |
| | oceanic ridges |
| | seamounts |
| | lava plateaus |
2 points  
Question 5
1.  
The ________ forms the relatively cool, brittle plates of plate tectonics. Answer
| | asthenosphere |
| | lithosphere|
| | astrosphere |
| | eosphere |
2 points  
Question 6
1.  
The asthenosphere is actually a part of the ________ of the Earth. Answer
| | outer core |
| | crust |
| | inner core |
| | mantle |
2 points  
Question 7
1.  
The ________ is not a part of the Earth's physical environment. Answer
| | solid Earth |
| | astrosphere |
| | hydrosphere |
| | atmosphere |
2 points  
Question 8
1.  
Active mountain belts are most likely to be found ________. Answer
| | along the margins of continents |
| | in the interior regions of continents |
| | scattered throughout continents |
| | along only the eastern margins of continents |
2 points  
Question 9
1.  
________, a popular natural philosophy of the 17th and early 18th centuries, was based on a firm belief in a very short geologic history for Earth. Answer
| | Ecospherism |
| | Exoschism |
| | Uniformitarianism |
| | Catastrophism |
2 points  
Question 10
1.  
In sedimentary rocks, lithification includes ________.
Answer
| | compaction and cementation |
| | cementation and weathering |
| | compaction and transportation |
| | crystallization and cooling |
2 points  
Question 11
1.  
The ________ proposes that the bodies of our solar system formed at essentially the same time from a rotating cloud of gases and dust. Answer
| | Big Bang theory |
| | Plate Tectonics theory |
| | Nebular hypothesis |
| | Heliocentric theory |
2 points  
Question 12
1.  
________ is the process by which rocks breakdown in place to produce soils and sediments. Answer
| | Weathering |
| | Lithification |
| | Subduction |
| | Metamorphism |
2 points  
Question 13
1.  
All of the following provide evidence or clues to the composition of Earth's interior except for ________. Answer
| | diamond-bearing rocks |
| | slivers of crustal and mantle rocks now exposed at Earth's surface| | | comets |
| | meteorites |
2 points  
Question 14
1.  
________ is often paraphrased as "the present is the key to the past." Answer
| | Biblical prophecy |
| | Uniformitarianism |
| | Aristotelian logic |
| | Catastrophism |
2 points  
Question 15
1.  
The...
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