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 used to describe the process by which organic molecules are formed in space?
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Astrobiology
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Astrochemistry
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Cosmochemistry
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Geochemistry
B
Correct answer
Explanation
Astrochemistry is the study of the chemical composition of celestial objects, including the formation of organic molecules in space.
What is the term used to describe the process by which organic molecules are delivered to a planet from space?
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Panspermia
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Astrobiology
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Cosmochemistry
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Geochemistry
A
Correct answer
Explanation
Panspermia is the hypothesis that organic molecules are delivered to a planet from space, either through comets, asteroids, or other mechanisms.
Which of the following is a common method used for decommissioning and abandonment of petroleum wells?
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Plugging and Abandonment
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Wellbore Cleanout
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Workover
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Perforating
A
Correct answer
Explanation
Plugging and abandonment is a process of permanently sealing a wellbore to prevent the leakage of fluids and ensure the safety of the environment.
What is the term used to describe the process of removing impurities from oil?
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Deodorization
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Refining
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Bleaching
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Winterization
B
Correct answer
Explanation
Refining is the process of removing impurities from oil. It involves a series of steps, including degumming, neutralization, bleaching, and deodorization.
What is the term used to describe the process of converting liquid oil into a solid or semi-solid fat?
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Hydrogenation
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Deodorization
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Winterization
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Saponification
A
Correct answer
Explanation
Hydrogenation is the process of converting liquid oil into a solid or semi-solid fat by adding hydrogen to the fatty acids.
What is the term used for the process of recovering valuable materials from electronic waste?
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E-waste recycling
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E-waste disposal
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E-waste incineration
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E-waste landfilling
A
Correct answer
Explanation
E-waste recycling involves recovering valuable materials, such as metals, plastics, and precious metals, from electronic waste through various processes like dismantling, shredding, and smelting.
What is the term used for the process of converting waste plastics into fuel or other useful products?
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Plastic pyrolysis
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Plastic incineration
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Plastic landfilling
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Plastic composting
A
Correct answer
Explanation
Plastic pyrolysis involves heating waste plastics in the absence of oxygen to break them down into smaller molecules, producing fuel, chemicals, and other valuable products.
What is the term used for the process of converting waste biomass into liquid fuels?
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Biomass gasification
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Biomass pyrolysis
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Biomass fermentation
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Biomass combustion
A
Correct answer
Explanation
Biomass gasification involves heating biomass in a controlled environment with limited oxygen to produce a combustible gas mixture called syngas, which can be used to generate electricity or produce liquid fuels.
What is the term used for the process of recovering valuable materials from construction and demolition waste?
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Construction and demolition waste recycling
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Construction and demolition waste disposal
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Construction and demolition waste incineration
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Construction and demolition waste landfilling
A
Correct answer
Explanation
Construction and demolition waste recycling involves recovering materials like concrete, metal, wood, and gypsum from construction and demolition sites for reuse or recycling.
What is the term used for the process of converting waste into energy through combustion?
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Incineration
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Pyrolysis
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Gasification
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Anaerobic digestion
A
Correct answer
Explanation
Incineration involves burning waste at high temperatures to produce heat and electricity, reducing the volume of waste and recovering energy.
What is the term used for the process of recovering valuable materials from agricultural waste?
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Agricultural waste recycling
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Agricultural waste disposal
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Agricultural waste incineration
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Agricultural waste landfilling
A
Correct answer
Explanation
Agricultural waste recycling involves recovering materials like crop residues, manure, and food processing byproducts for use as animal feed, compost, biofuel, or other valuable products.
What is the term used for the process of recovering valuable materials from municipal solid waste?
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Municipal solid waste recycling
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Municipal solid waste disposal
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Municipal solid waste incineration
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Municipal solid waste landfilling
A
Correct answer
Explanation
Municipal solid waste recycling involves recovering materials like paper, plastic, metal, and glass from household waste for reuse or recycling.
What is the term used for designing chemical processes that generate minimal or no waste?
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Zero Waste Chemistry
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Atom Economy
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Pollution Prevention
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Renewable Feedstocks
A
Correct answer
Explanation
Zero Waste Chemistry aims to design chemical processes that produce minimal or no waste byproducts, thereby reducing the environmental impact and promoting resource conservation.
What is the term for the practice of reducing the amount of waste produced?
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Reduce
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Reuse
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Recycle
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Compost
A
Correct answer
Explanation
Reduce is the term for the practice of reducing the amount of waste produced. Reducing waste can be done by buying less stuff, using reusable products, and composting food scraps.
What is the process of converting organic waste into energy-rich biogas called?
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Anaerobic Digestion
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Composting
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Incineration
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Pyrolysis
A
Correct answer
Explanation
Anaerobic digestion is a biological process that breaks down organic waste in the absence of oxygen, producing biogas (methane and carbon dioxide) as a byproduct.