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Science Ch 7
Chapter Test
| Question | Answer |
|---|---|
| Describe the relief of the Himalayan Mountains, the Great plains in the mid-west United States | The himalayan Mountains have high relief. The great plains have low relief. |
| Where is the most extensive mountain system in the world located? | THe mid-Atlantic ridge |
| How are tectonic mountains created? | Tectonic mountains are created when tectonic plates collide, pull apart, life up or subside. |
| Where are most rift valleys located? Give an example of an exception. | Most rift valley structures are located at mid-ocean ridges between diverging oceanic plates. Once major exception to this is the east african rift zone. |
| How do tectonic forces created fault-block mountains? | Tectonic forces are exerted in opposite directions which cause fault-block mountains to form. |
| True or false: THrough Earth's history, rock strata have piled up and have become highly faulted along mid-ocean ridges | False? |
| What process affects all rocks after they have formed? What kind of earth materials does this process create? | Erosion affects all rocks after they form. The process of erosion produces sediments. |
| How are sediments moved about? | Gravity, wind and flowing water. |
| What kind of depositional mountains or hills are formed by wind? | Sand dunes |
| WHy are volcanoes considered depositional mountains? | Volcanoes build up when liquid and solid rock from eruptions are deposited on the earth's surface. |
| True or false: Some fossiled sand dunes seen in sandstone formations may have actually formed under water. | True |
| Compare and contrast anticlines, synclines and monoclines. | Anticlines occur as an upward fold. Synclines are a downward fold. Monocline is when one side of the fold as pushed upward drops. |
| What is another name for the valley-like formations found in rift systems? | Grabens |
| Mesas are to buttes as mountains are to _______. | Hills |
| WHat is the term used by geologists to describe the balance of the weights of rock or water and ice in the upward force of the mantle? | Isostasy |
| WHat is a natural elevation of the earth's surface rising more or less abruptly to a summit? | Mountain |
| What the highest mounain on earth? | Everest |
| WHat are a series of mountain peaks in the same geographical area? | Mountain Range |
| Whre is the longest mountain system? what is it called? | The mid-atlantic ridge, under the Atlantic Ocean |
| What are broad regions of relatively undisturbed sedimentary deposits lifted by some tectonic processes? | Plateaus |
| Which state is almost entirely a single basin structure? | Michigan |
| WHat are extinct volcanoes that are seated inside ocean basins? | Sea Mounts |
| What are called residual mounains that are mountains that are carved out by extensive erosion, that are usually from a plateau? | Erosional Mountains |
| What are long relatively low ridges of glacial till that forms mostly at the front and sides of glaciers? | Moraines |
| What is the geologic term for tectonic mountain building? | Rorgeny |
Created by:
Russman