Term
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Definition
| soil is a mixture of weathered rock, mineral fragments, water, air, and _______ |
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Term
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Definition
| The layer of soil that contains the most organic matter is called the _____ horizon |
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Term
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Definition
| Is mechanical weathering caused by carbonic acid? |
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Term
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Definition
| Litter often covers the _____ horizon |
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Term
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Definition
| chemical weathering is more rapid in a _______,_______ climate |
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Term
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Definition
| mechanical weathering is more rapid in a _______ climate |
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Term
contour farming no-till farming
terracing shelter belts |
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Definition
| soil erosion can be slowed by______________(at least 2) |
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Term
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Definition
| The rate of weathering depends upon the area's _________ |
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Term
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Definition
| The rock and mineral fragments in soil come from rock that has been __________ |
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Term
| the way they effect the make-up of the rock(physical or chemical), processes, climate |
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Definition
| The difference between mechanical and chemical weathering is____________________ |
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Term
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Definition
| plants can not grow without ________ |
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Term
| water freezing and thawing |
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Definition
| ice wedging is brought about by___________ |
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Term
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Definition
| Minerals found in the B horizon were dissolved in water and carried there by a process called____________ |
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Term
climate - types of rock - time -
vegetation - slope of land |
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Definition
| five factors that affect soil development are _____________________________________ |
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Term
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Definition
| when water mixes with carbon dioxide gas in the air or soil, _______________ forms |
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Term
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Definition
| ___________ turns and loosens soil, improving it for crops, but leaving soil vulnerable to erosion |
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Term
moved from the place it formed
plants or forests removed, overgrazing, steep slopes |
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Definition
| when does soil erosion occur? |
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Term
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Definition
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Term
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Definition
| Three horizons make up a soil__________ |
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Term
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Definition
| most humus(which horizon) |
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Term
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Definition
| most like parent material |
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Term
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Definition
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Term
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Definition
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Term
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Definition
| farm animals eat too much grass |
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Term
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Definition
| dead plant and animal matter that has decayed due to bacteria and fungi |
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Term
| climate, type of rock, time, rock weathers, slope, vegetation |
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Definition
| factors that influence the development of soil in a certain area |
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Term
| no-till farming, contour farming, terracing, shelter belts |
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Definition
| 3 things farmers prevent soil erosion |
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