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Ch6L2 Soil
Review and Flash cards for Soil
| Question | Answer |
|---|---|
| Is a mixture of rock and bits of once living parts of plants and animals? | soil |
| Each layer of soil is called a | soil horizon |
| This is the part of the soil that is made up of decayed organic materials | humus |
| This horizon holds the most nutrients and contains humus | A horizon |
| Soil in the A horizon is known as | topsoil |
| This soil horizon is located below the topsoil and contains fine rock particles | B horizon |
| This soil horizon is made up mostly of larger pieces of weathered rock It rests on unweathered bedrock | C horizon |
| The three main types of soil in the USA are | desert forest grassland/prairie |
| Desert soil is made up of mostly | sand |
| Forest soil has a thin layer of _______ with little humus | topsoil |
| Grassland/prairie soil is rich in _______ | humus |
| Soil is a ______ it can be used up, wasted, or spoiled. | resource |
| The addition of harmful materials to soil air,or water is | pollution |
| Adding nutrients to soil is called | fertilizing |
| Farmers can plant different crops on the same land in different years | crop rotation |
| Planting grass between rows of crops is called | strip farming |
| Cutting flat shelves into hillsides for crop growing is called | terracing |
Created by:
69boners69
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