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| 1 | |
Which location is most likely to produce chemical sedimentary rocks? |
| | A) | Active volcanoes |
| | B) | Shallow evaporating seas |
| | C) | Tropical swamps |
| | D) | Stream deposition |
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| 2 | |
Which of these are present in an element's nucleus? |
| | A) | Electrons |
| | B) | Electrons and protons |
| | C) | Neutrons |
| | D) | Neutrons and protons |
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| 3 | |
What is an atom that has lost or gained electrons? |
| | A) | Ion |
| | B) | Element |
| | C) | Isotope |
| | D) | Neutron |
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| 4 | |
What two elements make up the mineral quartz? |
| | A) | Sodium, calcium |
| | B) | Silicon, nitrogen |
| | C) | Potassium, oxygen |
| | D) | Oxygen, silicon |
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| 5 | |
What are the two most common elements in the earth's crust? |
| | A) | Oxygen and silicon |
| | B) | Calcium and magnesium |
| | C) | Aluminum and iron |
| | D) | Sodium and potassium. |
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| 6 | |
Which mineral property is associated with breaking on planes? |
| | A) | Crystal form |
| | B) | Cleavage |
| | C) | Hardness |
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| 7 | |
What material is 10 on Moh's scale? |
| | A) | Talc |
| | B) | Quartz |
| | C) | Diamond |
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| 8 | |
What is the change in composition and texture of a rock that occurs as a result of increases in temperature and pressure? |
| | A) | Lithification |
| | B) | Metamorphism |
| | C) | Weathering |
| | D) | Crystallization. |
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| 9 | |
Which type of rocks typically show beds? |
| | A) | Foliated metamorphic rocks |
| | B) | Sedimentary |
| | C) | Igneous |
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| 10 | |
What is the correct order for these processes that form clastic sedimentary rocks? |
| | A) | Lithification, generation, transportation |
| | B) | Generation, lithification, transportation |
| | C) | Generation, transportation, lithification |
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| 11 | |
Which rock type may be both a chemical and a biochemical sedimentary rock? |
| | A) | Limestone |
| | B) | Coal |
| | C) | Rock salt |
| | D) | Marble |
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| 12 | |
What processes cause metamorphism in rocks? |
| | A) | Increased temperature |
| | B) | Increased pressure |
| | C) | Increased temperature and/or temperature |
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| 13 | |
Which of the following is not a reason why we study and describe rocks? |
| | A) | To determine what the world may have looked like at the time the rocks were formed. |
| | B) | To find out where natural resources are distributed. |
| | C) | To help us understand how other planets are constructed. |
| | D) | To find out where the rocks may have come from. |
| | E) | All of the above are reasons we study and describe rocks. |
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| 14 | |
You examine an igneous rock that has mineral grains which are 2.5 cm in size (large), and are primarily dark green and black color. Which statement concerning the rock is not accurate? |
| | A) | The textural classification of the rock would be coarse grained |
| | B) | This rock would be classified as a plutonic rock. |
| | C) | This rock likely has minerals with chemical elements like iron and magnesium in them |
| | D) | The composition of the magma that formed this rock would be Felsic |
| | E) | A likely rock name for this specimen would be a gabbro. |
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| 15 | |
You examine a rock that has large mineral crystals that are clearly visible. On those mineral crystals, you notice that there are numerous flat smooth surfaces, all oriented in the same directions within each specific mineral. The likely explanation for this is |
| | A) | The minerals have grown into one another at exactly the same angles |
| | B) | The minerals are exhibiting cleavage surfaces |
| | C) | The minerals were forced into this orientation by the extreme heat and pressure associated with the formation of the rock |
| | D) | The minerals grew that way as the sediments were deposited. |
| | E) | None of the above |
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| 16 | |
When examining metamorphic rocks it is important to understand |
| | A) | that the rocks have melted and recrystallized to form the rock. |
| | B) | that the tremendous pressure has affected the overall chemical composition of the rock. |
| | C) | that the heat and pressure involved partly influences which minerals will form in the metamorphic rock. |
| | D) | that the starting composition of the original rock will have no influence on the metamorphic rock that forms. |
| | E) | that the amount of pressure is relatively unimportant in metamorphic rocks. |
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