Environmental Studies ยท Chemistry
Environmental and Chemical Processes
2,261 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 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.
Which of the following is a major cause of ocean acidification?
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Carbon dioxide emissions
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Oil spills
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Overfishing
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Plastic pollution
A
Correct answer
Explanation
Carbon dioxide emissions from human activities are a major cause of ocean acidification.
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 are the potential environmental impacts of water and rural development projects?
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Deforestation
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Water pollution
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Loss of biodiversity
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All of the above
D
Correct answer
Explanation
Water and rural development projects can have potential environmental impacts, including deforestation, water pollution, and loss of biodiversity.
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.
What is the term used to describe the extraction of fossil fuels from the earth?
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Mining
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Drilling
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Harvesting
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Extraction
D
Correct answer
Explanation
Extraction is the general term used to describe the process of removing fossil fuels from the earth. This can involve mining for coal, drilling for oil and natural gas, or using other methods to extract these non-renewable energy sources.
What is the term used to describe the process of converting fossil fuels into usable energy?
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Combustion
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Extraction
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Refinery
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Fossilisation
A
Correct answer
Explanation
Combustion is the process of burning fossil fuels to produce heat or power. This is the most common way to convert fossil fuels into usable energy. Combustion occurs when fossil fuels are mixed with oxygen and ignited, releasing energy in the form of heat and light.
What is the term used to describe the process of removing impurities from fossil fuels?
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Extraction
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Purification
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Refinery
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Fossilisation
C
Correct answer
Explanation
Refinery is the term used to describe the process of removing impurities from fossil fuels. Crude oil and natural gas are refined to remove impurities and produce usable products, such as gasoline, diesel, and other fuels.
What is the primary environmental impact of sandstone quarrying?
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Air pollution
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Water pollution
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Land degradation
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Noise pollution
C
Correct answer
Explanation
Sandstone quarrying involves the removal of large amounts of rock and soil, which can lead to significant land degradation. This can result in the loss of habitat for plants and animals, as well as increased erosion and sedimentation.