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Earth Science
| Question | Answer |
|---|---|
| What combination of conservation techniques will best reduce soil loss from a sloped field? | Decreasing slope angle; plowing across the slope |
| What process(es) play key roles in soil formation? | Both chemical and physical weathering |
| Regolith is essentially the same as soil. | false |
| Identical marble statues were erected at the same time in four cities with the following climate characteristics. Using the chart above, which town's statue will undergo the most weathering in a 50-year period? | Cumberburg |
| Which of the following cities' roads would likely experience the most potholes during the month of March? | Milwaukee, Wisconsin- temperatures are above freezing during the day and below freezing at night |
| Match the causes of soil erosion with the soil conservation practice intended to reduce that erosion. Character of the soil | Return organic matter to soil |
| The pH value of a solution decreases with increasing concentrations of hydrogen ions. | True |
| What processes play the most important role in soil formation? | Weathering and biological activity |
| Which scenario would result in the most erosion? | Large agricultural population, abundant rainfall and strong average winds. |
| What will chemical weathering do to the rate of physical weathering? | Increases physical weathering |
| What process involves the removal of materials? | Erosion |
| Quartz is easily weathered compared to other minerals. | False |
| What materials are you likely to find in a soil horizon from the surface down? | Organics, leached materials, weathered parent material |
| Match the causes of soil erosion with the soil conservation practice intended to reduce that erosion. Wind velocity: | Provide shelter for fields |
| Soil conservation practices have not changed much since the time of George Washington and Thomas Jefferson. | true |
| Predict the quality of soils in a tropical rain forest. | Low quality due to high levels of leaching. |
| Determine whether the following scenario is an example of physical, chemical, or biological weathering. A sand grain is rounded as it is carried downstream in a river | Physical weathering |
| What type of chemical weathering occurs when minerals dissolve in water? | Dissolution |
| Porosity describes how rapidly water moves through a rock. | false |
| How does physical weathering change the surface area of rocks and affect the rate of chemical weathering? | Increases surface area and thereby increases chemical weathering |
| Permeability describes how rapidly water moves through a rock. | true |
| Determine whether the following scenario is an example of physical, chemical, or biological weathering. An centuries-old marble gravestone is so poorly preserved that the inscription is no longer legible. | Chemical weathering |
| Determine whether the following scenario is an example of physical, chemical, or biological weathering. The passenger door on an older car begins to rust. | Chemical weathering |
| What type of chemical weathering causes rust to form? | Oxidation |
| The volume of water decreases when liquid water changes to ice. | false |
| Determine which soil layer best fits the following description. This layer has lost most of its minerals through leaching. | e horizon |
| Basalt parent rock would form a soil very similar to that formed from limestone. | False |
| Biologic weathering is essential for soil formation. | true |
| Determine which soil layer best fits the following description. This layer consists mainly of organic debris and other dead plant and animal matter. | O horizon |
| Carbonic acid forms when carbon dioxide reacts with rainwater. | true |
Created by:
paolalyan