APES mining methods and reclamation
Study essential mining methods and reclamation practices in AP Environmental Science, focusing on sustainability and environmental impact.
Quiz(32 questions)
1. What is the primary environmental concern associated with open-pit mining?
Terms in this Study Set(32)
Mining Methods(16)
What is open-pit mining?
A surface mining technique where a large excavation is made to extract minerals. Environmental impact: habitat destruction, water pollution.
What is mountaintop removal mining?
A mining method where the tops of mountains are blasted off to access coal seams. Environmental impact: deforestation, stream burial.
True or False: Subsurface mining has less environmental impact than surface mining.
True. Subsurface mining generally disturbs less land but can cause land subsidence and groundwater contamination.
What is the primary method for gold extraction?
Cyanide leaching is commonly used to extract gold. Environmental impact: toxic runoff, soil contamination.
Fill in the blank: _____ mining involves creating wells to extract minerals.
Solution mining. Involves injecting solvents to dissolve minerals, leading to lower surface disruption.
Compare surface mining and subsurface mining.
Surface mining: less expensive, greater disturbance. Subsurface mining: more expensive, less land disruption but higher risk of accidents.
What is strip mining?
A method for minerals like coal where layers of soil and rock are removed. Environmental impact: erosion, waterway pollution.
What does the term 'tailings' refer to?
Waste materials left after the extraction of metals. Environmental impact: contamination of soil and water.
Cause → Effect: Habitat destruction in mining.
Cause: Land clearing for mining operations. Effect: Loss of biodiversity and ecosystem services.
True or False: All mining methods result in the same level of environmental impact.
False. Different mining methods have varying degrees of ecological disruption and pollution.
What is underground mining?
A technique used to access deep mineral deposits via shafts. Environmental impact: risk of mine collapse, pollution from runoff.
Name a key environmental impact of coal mining.
Acid mine drainage: leaching of sulfuric acid from exposed minerals, contaminating water sources.
What is placer mining?
A mining method for extracting gold and other minerals from river sediments. Environmental impact: habitat destruction, river siltation.
What is the main focus of the Mining Act of 1872?
Encouraging mineral exploration and mining on federal lands. It has implications for environmental regulation.
What is the purpose of mineral exploration?
To locate new mineral deposits through surveying and sampling. Environmental impact: potential habitat disturbance.
Describe one impact of quarrying.
Quarrying can lead to significant landscape alteration, erosion, and habitat loss.
Reclamation Techniques(16)
What is land reclamation?
The process of restoring land after mining activities to a usable state.
Key goal of reclamation?
Restore ecosystem functions, improve aesthetics, and ensure safety.
True or False: Reclamation is optional after mining.
False - It is often required by law.
Fill in the blank: ____ is a technique using vegetation to stabilize soil.
Revegetation.
What is the primary purpose of topsoil replacement?
To create a suitable environment for plant growth.
List two methods of soil stabilization.
1. Terracing 2. Slope grading.
Cause → Effect: Mining without reclamation leads to...
Erosion, habitat loss, and pollution.
What is the role of native plants in reclamation?
They promote biodiversity and are adapted to local conditions.
Reclamation: Active vs. Passive
Active: Direct intervention, e.g., planting. Passive: Allowing natural recovery.
What is 'revegetation'?
The process of reintroducing plant life to disturbed areas.
True or False: Reclamation can take decades to complete.
True - Many ecosystems require long times to recover.
What is a common method for controlling erosion after mining?
Installing silt fences and planting ground cover.
Compare: Reclamation vs. Restoration.
Reclamation: Making land usable. Restoration: Recreating original ecosystems.
Example of a reclamation technique?
Constructing wetlands to filter water and restore habitats.
What is the significance of monitoring reclaimed land?
To assess ecological recovery and ensure compliance with regulations.
Fill in the blank: ____ is often used to replace lost habitats.
Constructed wetlands.
Questions in this Study Set(32)
1. What is the primary environmental concern associated with open-pit mining?
2. What is the main objective of land reclamation?
3. Which mining method primarily uses hydraulic equipment to extract minerals from river sediments?
4. Which of the following is NOT a common technique in land reclamation?
5. Which of the following is NOT a characteristic of surface mining?
6. True or False: Land reclamation can help reduce soil erosion.
7. True or False: Mountaintop removal mining has minimal impact on local ecosystems.
8. What role do native plants play in reclamation efforts?
9. What is a primary environmental impact of underground mining?
10. What is 'active reclamation'?
11. Fill in the blank: _____ mining is characterized by the use of chemicals to extract minerals from ore.
12. Which of the following is a benefit of topsoil replacement in reclamation?
13. What does the term 'tailings' specifically refer to in mining?
14. Fill in the blank: ____ is a method of preventing erosion in reclaimed areas.
15. Which mining method is most likely to result in surface water pollution due to runoff?
16. What is the difference between reclamation and restoration?
17. Which mining technique typically leads to deforestation as a primary impact?
18. What does monitoring reclaimed land involve?
19. What is the result of acid mine drainage?
20. True or False: Reclamation can sometimes take several decades.
21. What is a significant advantage of subsurface mining compared to surface mining?
22. Which of the following is an example of a reclamation technique?
23. Which of the following is an example of a reclamation method?
24. What is slope grading used for in reclamation?
25. Which of the following mining methods is least likely to contribute to soil erosion?
26. Fill in the blank: ____ is often implemented to enhance local water quality post-mining.
27. What was the significant focus of the Mining Act of 1872?
28. Which of the following is a cause and effect relationship regarding mining and reclamation?
29. True or False: All mining methods have equal economic benefits.
30. What is the role of silt fences in reclamation?
31. Which of the following mining methods is most associated with habitat destruction due to the removal of mountain tops?
32. Which of the following best describes the term 'revegetation'?
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