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Soil
| Question | Answer |
|---|---|
| Define Mechanical Weathering? | Physical forces break rock into smaller pieces without changing the material |
| Give examples of Mechanical Weathering | Frost wedging, unloading, biological activity |
| Define Frost wedging? | Rain and water enters cracks in a boulder each time water freezes |
| What is Carbon Acid? | Carbon dioxide dissolves an combines water moves it up and goes down |
| How does Carbon acid affect rocks? | it erodes the rocks |
| Define climate? | greatest effect varies in temp & precipitation. It changes in rate depth, weathering |
| Describe the climate that has the fastest chemically weathered soil? | warm wet, warm and humid |
| Factors that affect soil formation? | 1.Climate 2.Rock 3.Slope 4. Time 5. Vegitaion |
| The size of soils particles determines the soils? | Texture |
| Air? Water? Mineral prod? | 25%, 25% & 45% |
| Moat of the Organic matter in soil comes from? | Nutrition |
| What is Humus? | The organic material in soil |
| Define chemical weathering? | The transformation in a rock into one or new component |
| Would soil form better on a slope or surface? | Surface |
| What is a layer of a soil profile called? | soil horizon |
| All the soils together make up a? | soil profile |
| What are the 3 soil types? | Pedofler (temperate), Peodcal(dry), Laterite(no water tropical) |
| The rate of Soil erosion has been? | Increasing |
| Humans have increased the amount of _____ on rivers and streams | erosion |
| what is the order of how water erodes soil? | rilly, gully, sheet, stream |
| Define mass movement? | The transfer of a rock and soil down slope due to gravity |
| What force causes mass movement? | Gravity causes material down slope |
| Speed of mass movement? | slow & sudden |
| Explain how vegetation can prevent mass movement? | hiding the soil in place |
| rock falls | block of rocks break loose from steep slope |
| rock slide | rock slips down hill step rock areas |
| mud flow | thick layers of sediment after fire |
| creep | when soil moves down hill |
| slump | a mass movement when mass material slips down occurred surface |
| glacier | large mass of ice and snow living on land under its weight |
| plucking | when a moving glaciers picks up pieces of rock |
| Name some of the features in the U.S created by glacier erosion | valleys, great lakes |
| the main type of weathering in the desert is | mechanical (lack of moisture and scarcity) |
| abrasion | the process of scraping or weathering away |
| what agent of erosion does the most eroding | wind, running water |
| composed | decayed organic material |
| contour plowing | plowing on land when you plown in cross raws |
| no till farming | when crops are cropped w/o tilling |
| desertification | this occurs due to harsh climate and ill land |
Created by:
AideEnriquez
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