weathering and soil erosion
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| is the process that breaks down rock and other substances at Earth’s surface. | show 🗑
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| show | erosion
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| show | weathering and erosion
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| This principle states that the same processes that operate today operated in the past. | show 🗑
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| The type of weathering in which rock is physically broken into smaller pieces is called. | show 🗑
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| show | the causes of mechanical weathering
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| show | abrasion
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| When water seeps into cracks in rocks and then freezes when the temperature drops. Water expands when it freezes. Ice therefore acts like a wedge that forces things apart. Wedges of ice in rocks widen and deepen cracks. | show 🗑
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| is the process that breaks down rock through chemical changes. | show 🗑
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| include the action of water, oxygen, carbon dioxide, living organisms, and acid rain. | show 🗑
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| is the most important cause of chemical weathering. | show 🗑
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| Iron combines with oxygen in the presence of water in a process. | show 🗑
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| show | carbon dioxide
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| The most important factors that determine the rate at which weathering occurs | show 🗑
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| show | Permeable
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| refers to the average weather conditions in an area. | show 🗑
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| show | soil
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| the solid layer of rock beneath the soil. | show 🗑
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| a mixture of rock particles, minerals, decayed organic material, water, and air. | show 🗑
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| show | Humus
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| The __________ of soil is a measure of how well the soil supports plant growth. | show 🗑
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| show | loam
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| forms as rock is broken down by weathering and mixes with other materials on the surface. Soil is constantly being formed wherever bedrock is exposed. | show 🗑
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| show | soil horizon
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| show | topsoil
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| The B horizon, often called ________, usually consists of clay and other particles washed down from the A horizon, but little humus. | show 🗑
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| Scientists classify the different types of _______ into major groups based on climate, plants, and soil composition. | show 🗑
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| As plants shed leaves, they form a loose layer. | show 🗑
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| show | Decomposers
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| the thick mass of tough roots at the surface of the soil—kept the soil in place and held onto moisture. | show 🗑
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| show | natural resource
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| one of Earth’s most valuable natural resources because everything that lives on land, including humans, depends directly or indirectly on it. | show 🗑
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| show | erosion
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| can be damaged when it loses its fertility. | show 🗑
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| show | water and wind
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| show | Dust bowl
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| the management of soil to prevent its destruction. | show 🗑
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| can be conserved through contour plowing, conservation plowing, and crop rotation. | show 🗑
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| show | contour plowing
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| show | conservation plowing
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| show | crop rotation
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Created by:
Jenstack
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