Unit 4 Review
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| Where does the formation of coal begin? | in a swamp with a lot of big plants
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| Sedimentary rocks are formed when sediments are deposited into layers. What happens next? | The layers are compacted and then cemented.
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| Where does the formation of oil and natural gas start? | in the ocean with a lot of tiny sea organisms
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| A delta is formed when sediments are dropped off and builds up at the end of a river. What is the process of dropping off sediments called? | Deposition
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| How does a U-shaped valley form? | Ice (or a glacier) weathers the mountain and erodes the sediments.
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| How is a canyon formed? | A river weathers the rocks and erodes the sediments.
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| A fossil of a fish was discovered in an area that is now a mountain. What does the discovery of this fossil tell us about the area in the past? | It was once a lake or ocean.
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| Why are coal, oil, and natural gas called nonrenewable resources? | They cannot be replaced in a short amount of time because they take millions of years to form.
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| Fossil fuels form when organic matter is covered with sediments. What else is needed for fossil fuels to form? | Time, heat, and pressure
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| How are fossil fuels and sedimentary rock formation similar? | They both need time, layers, and pressure
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| How does a river delta form? | A river slows down at the mouth of the river and the sediments are deposited.
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| What is the process called that moves sediments? | Erosion
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| What is the process called that breaks rocks into sediments? | Weathering
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| What is the process called that drops sediments in a new place? | Deposition
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| How is a sand dune formed? | Wind erodes the sand and deposits the sand into hills.
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| Why are the wind, the sun, water, and plants called renewable resources? | They can be replaced in a short amount of time.
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| What would the peaks of an older mountain range look like? | The peaks of an older mountain range would be SMOOTH and ROUNDED.
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| What would the peaks of a younger mountain range look like? | The peaks of a younger mountain range would be STEEP and POINTY.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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