Environmental Studies ยท Chemistry
Environmental and Chemical Processes
2,324 Questions
Environmental and chemical processes encompass waste management, pollution remediation, and biogas conversion. These questions evaluate your grasp of how organic and synthetic materials interact with ecosystems. Such topics regularly appear in general science and environmental studies papers.
Waste managementBiogas conversionPhytoremediationSoil washingPollution control
Environmental and Chemical Processes Questions
What is the term for the process of repurposing discarded materials or products into new items?
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Upcycling
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Recycling
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Downcycling
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Composting
A
Correct answer
Explanation
Upcycling involves transforming discarded materials or products into new items of higher quality or value, extending their lifespan and reducing waste.
What is the term used to describe the release of toxic chemicals from textiles into the environment?
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Textile shedding
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Textile pollution
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Textile contamination
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Textile leaching
D
Correct answer
Explanation
Textile leaching is the term used to describe the release of toxic chemicals from textiles into the environment. This can occur during the production, use, and disposal of textiles. Textile leaching can contaminate water sources, pollute the air, and accumulate in the soil.
What is the term used to describe the process of removing toxic chemicals from textiles?
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Textile detoxification
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Textile purification
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Textile remediation
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Textile decontamination
A
Correct answer
Explanation
Textile detoxification is the term used to describe the process of removing toxic chemicals from textiles. This can be done using a variety of methods, including chemical treatment, physical treatment, and biological treatment. Textile detoxification is an important step in reducing the environmental and health impacts of toxic chemicals in fashion.
What is the term used to describe the process of removing pollutants from the air before they are released into the environment?
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Air pollution control
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Emission reduction
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Carbon capture and storage
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Energy efficiency
A
Correct answer
Explanation
Air pollution control refers to the methods and technologies used to remove pollutants from the air before they are released into the environment.
What is the term used to describe the process of converting waste materials into usable energy?
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Waste-to-energy conversion
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Energy recovery from waste
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Biomass energy production
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All of the above
D
Correct answer
Explanation
Waste-to-energy conversion, energy recovery from waste, and biomass energy production are all terms used to describe the process of converting waste materials into usable energy.
What is the term used to describe the chemical reactions that occur in interstellar gas and dust?
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Interstellar chemistry
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Astrochemistry
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Cosmochemistry
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Geochemistry
A
Correct answer
Explanation
Interstellar chemistry refers to the chemical reactions that occur in interstellar gas and dust, leading to the formation of molecules and complex organic compounds.
What is the term for the process by which plastic breaks down into smaller pieces?
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Fragmentation
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Degradation
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Polymerization
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Hydrolysis
A
Correct answer
Explanation
Fragmentation is the term used to describe the process by which plastic breaks down into smaller pieces over time.
What is the process of converting natural gas into a liquid called?
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Liquefaction
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Gasification
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Reforming
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Pyrolysis
A
Correct answer
Explanation
Liquefaction is the process of converting natural gas into a liquid state by cooling it to extremely low temperatures.
What is the process of extracting natural gas from underground reservoirs called?
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Drilling
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Fracking
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Production
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Exploration
C
Correct answer
Explanation
Production refers to the process of extracting natural gas from underground reservoirs once they have been discovered and developed.
What is the process of removing water vapor from natural gas called?
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Dehydration
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Desulfurization
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Sweetening
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Liquefaction
A
Correct answer
Explanation
Dehydration is the process of removing water vapor from natural gas to prevent corrosion and other issues.
What is the term used to describe the process of recovering valuable materials from waste or discarded products?
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Mineral resource conservation
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Mineral resource recycling
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Mineral resource extraction
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Mineral resource exploration
B
Correct answer
Explanation
Mineral resource recycling refers to the process of recovering valuable materials from waste or discarded products, thereby reducing the need for extracting new resources.
What is the term used to describe the process of recovering valuable materials from waste or discarded products?
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Mineral resource conservation
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Mineral resource recycling
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Mineral resource extraction
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Mineral resource exploration
B
Correct answer
Explanation
Mineral resource recycling refers to the process of recovering valuable materials from waste or discarded products, thereby reducing the need for extracting new resources.
What is the term used to describe the process of returning treated wastewater to the environment?
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Discharge
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Reuse
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Reclamation
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Recycling
A
Correct answer
Explanation
Discharge is the term used to describe the process of returning treated wastewater to the environment. This can be done through various methods, such as releasing it into rivers, lakes, or oceans, or using it for irrigation or industrial purposes.
What is the term used to describe the process of reducing the amount of pollutants entering a water body?
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Pollution prevention
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Wastewater treatment
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Water reuse
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Stormwater management
A
Correct answer
Explanation
Pollution prevention is the term used to describe the process of reducing the amount of pollutants entering a water body. This can be done through various measures, such as reducing the use of toxic chemicals, improving agricultural practices, and implementing stormwater management strategies.
What is the process by which fossil fuels are formed called?
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Photosynthesis
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Combustion
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Fossilisation
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Hydrolysis
C
Correct answer
Explanation
Fossilisation is the process by which organic matter is converted into fossil fuels over millions of years. This process involves the burial of organic matter under layers of sediment, subjecting it to high pressure and temperature, and the absence of oxygen.