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Weathering / Erosion
Weathering and Erosion Unit study guide
| Question | Answer |
|---|---|
| A farmer conserves her soil by reducing the number of times she plows. She is practicing _____________. | conservation tillage |
| All of the particles in your soil sample are large enough to see without a microscope. These particles are classified as __________ | sand |
| What created the Great Lakes? | Glaciers |
| Beneath the water surface, waves and currents build up ridges of sand called ___________________________ | sandbars |
| It is difficult for water to move through soil that has __________________________. | little or no pore space |
| Floodplains are usually formed in _____________________________ | low areas |
| Glaciers cover about ________________ percent of Earth's land surface | ten |
| A sandbar can build up above the surface of the water and become a _____________________________________. | barrier island |
| You are examining a soil sample that is black in color. It is likely that your sample has a ______________________________. | high humus content |
| Construction and development often results in ___________________ | soil loss |
| A farmer spreads lime on his soil to make it less acidic. He is changing his soil's _______________________ | chemistry |
| Low mineral content and a thin humus layer characterize the soil of tropical climates. Tropical soils tend to _____________________________ | be unsuitable for crop growing |
| The physical or chemical breakdown of rocks is called. ____________________ | weathering |
| Wind can form _____________________ | loess and dunes |
| A location that supports a lot of plant and animal life will likely have a soil profile with __________________________ | a thick "A" horizon |
| Desert pavement forms when winds blow away all the fine-grained particles from an area but leaves behind _____________________________________ | rocks and gravel |
| Glaciers that form in the mountains and flow into valleys are called ________________ | alpine glaciers |
| Chemical weathering changes rocks through. ______________________________ | reactions that change the rocks composition |
| By breaking down rocks with their roots, plants commonly cause ___________ | mechanical weathering |
| The process in which something is worn down by rubbing one object or surface against another is called _________________________ | abrasion |
| Acid rain causes chemical weathering by ________________________________ | dissolving rock minerals |
| A ___________________________climate type has conditions for the fastest chemical weathering. | hot and wet |
| Soil is a necessary resource as it _________________________________________ | supports plant growth |
| Glacier ice moving down a hillside picks up and carries rock particles downhill. This movement is an example of _____________________________ | erosion |
| Sediment is placed in new locations through a process called _______________ | deposition |
| The borders of drainage basins are called __________________________ | divides |
| When the roof of a cave falls in, the result is a _________________________ | sinkhole |
| Once every few years, a farmer plants bean crops instead of wheat in her fields. The farmer is practicing soil conservation through ___________________ | crop rotation |
| The downhill movement of rock or soil is called ____________________________ | mass wasting |
| Mass wasting can be classified by the type of material that is moved and the _______________________________________________ | speed and type of movement |
Created by:
Bpratte
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