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Rocks and Weathering
questions to review
| Question | Answer |
|---|---|
| Some plants produce acids which result in _weathering | chemical |
| A rock that contains tiny, connected spaces through which water can move as said to be | permeable |
| One agent of chemical weathering is_ which combines with water to form carbonic acid | carbon dioxide |
| The actions of animals most commonly can cause the type of weathering known as? | mechanical |
| Rapid chemical weathering can be caused by_ whichs is rain combined with pollutants | acid rain |
| Some plants produce acids that result in_ weathering | chemical |
| The factors that determine the rate of weathering are the type of _ and_ | rock and climate |
| Acid rain causes very rapid_weathering | chemical |
| The most important agent of chemical weathering is_ | water |
| After chemical weathering, the chemical makeup of the rock is _ than the original rock | different |
| Freezing and thawing are an example of_ weathering | mechanical |
| The movement of rock particles by ice, wind, water, and gravity is called_ | erosion |
| The rate of chemical weathering is _ in hot, wet climates than in cold dry climates. | faster |
| The gas that causes rock containing iron to oxidize is _ | oxygen |
| The type of weathering that occurs due to release of pressure is called_ | mechanical weathering |
| Plant roots that force cracks in rocks farther apart is an agent of _ weathering | mechanical |
| What has a rock probably been chemically weathered by if it contains iron and is soft and crumbly and has a red-brown color? | oxygen with water equals rust on iron |
| What may the growth of plants roots and animal activity result in? | mechcanical weathering |
| What is the agent of mechanical weathering called in which rock is worn away by the grinding action of other rock particles? | Abrasion |
| What kind of weathering causes the mineral composition of rocks to change? | chemical |
| What type of climate causes weathering to happen rapidly? | hot, wet |
| What is ice wedging? | When water seeps into cracks and freezes thus widing the crack and then thaws. Then the cycle happens again and again until the crack breaks of. |
| Why does permeable rock weather easily? | water seeps in and ice wedges |
| What can scientists infer form the rounded shape of the Appalachian Mountains? | It means the mountains have been weathering. |
| A marble statue is left exposed to the weather. What agent of mechanical weathering probably cause it to weather? | Freezing and Thawing |
| Describe how freezing and thawing of water causes mechanical weathering. | Freezing and thawing happens when water seeps into cracks. The water freezes and widens the crack. The ice thaws and happens again and again. |
| Explain how oxygen causes chemical weathering. | Oxygen mixes with water that is on iron. The mix produces oxidation or rust. The rust will eat away the metal. |
| Predict how the cities climate will affect the statue.(hot, rainy summers and freezing winter temperatures, and air pollution) | The wet climate would would wear the statue away. The freezing winter will cause ice wedging. The pollution would cause acid rain. |
Created by:
tyler231
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