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 marine organisms convert organic matter into carbon dioxide?
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Carbon sequestration
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Photosynthesis
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Respiration
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Decomposition
D
Correct answer
Explanation
Decomposition is the process by which marine organisms convert organic matter into carbon dioxide. During decomposition, microorganisms break down organic matter, releasing carbon dioxide as a byproduct. Decomposition contributes to the global carbon cycle and influences the balance of carbon dioxide in the atmosphere.
What is the term used to describe the process by which marine organisms convert organic matter into energy?
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Carbon sequestration
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Photosynthesis
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Respiration
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Decomposition
C
Correct answer
Explanation
Respiration is the process by which marine organisms convert organic matter into energy. During respiration, marine organisms break down organic matter, releasing energy in the form of ATP. Respiration contributes to the global carbon cycle and influences the balance of carbon dioxide in the atmosphere.
What is the term used to describe the process by which marine organisms convert organic matter into inorganic compounds?
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Carbon sequestration
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Photosynthesis
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Respiration
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Decomposition
D
Correct answer
Explanation
Decomposition is the process by which marine organisms convert organic matter into inorganic compounds. During decomposition, microorganisms break down organic matter, releasing inorganic compounds such as carbon dioxide, water, and nutrients. Decomposition contributes to the global carbon cycle and influences the balance of carbon dioxide in the atmosphere.
What is the term for the process by which marine organisms break down organic matter into simpler compounds?
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Decomposition
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Nitrification
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Denitrification
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Photosynthesis
A
Correct answer
Explanation
Decomposition is the process by which marine organisms, such as bacteria and fungi, break down organic matter into simpler compounds, releasing nutrients back into the ecosystem.
What is the scientific term for the process of converting fat into smaller molecules?
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Lipolysis
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Hydrolysis
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Polymerization
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Oxidation
A
Correct answer
Explanation
Lipolysis is the process of breaking down fat into smaller molecules, such as fatty acids and glycerol. This process occurs during digestion and is catalyzed by enzymes called lipases.
What is the term for the process of removing the feathers from a slaughtered poultry bird?
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Scalding
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Picking
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Evisceration
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Chilling
B
Correct answer
Explanation
Picking is the process of removing the feathers from a slaughtered poultry bird. This can be done manually or mechanically using specialized equipment. Scalding is a step that precedes picking and involves immersing the bird in hot water to loosen the feathers.
What is the term for the process of removing the internal organs from a slaughtered poultry bird?
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Evisceration
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Dressing
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Scalding
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Picking
A
Correct answer
Explanation
Evisceration is the process of removing the internal organs from a slaughtered poultry bird. This includes removing the heart, liver, lungs, kidneys, and intestines. Evisceration is typically done after the bird has been slaughtered and defeathered.
What is the term used to describe the process of removing flammable materials from around a structure to protect it from a forest fire?
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Fireproofing
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Defensible space
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Firebreak
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Containment line
B
Correct answer
Explanation
Defensible space is the term used to describe the process of removing flammable materials from around a structure to protect it from a forest fire.
What is the term used to describe the process of recovering and reusing materials from waste?
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Recycling
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Composting
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Incineration
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Landfilling
A
Correct answer
Explanation
Recycling refers to the process of recovering and reusing materials from waste, such as paper, plastic, metal, and glass, to create new products.
What is the term used to describe the process of reducing the amount of waste generated?
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Waste reduction
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Waste management
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Waste disposal
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Waste treatment
A
Correct answer
Explanation
Waste reduction refers to the practices and strategies employed to minimize the amount of waste produced, such as reducing consumption, reusing items, and composting organic waste.
What is the term used to describe the process of converting organic waste into a nutrient-rich soil amendment?
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Composting
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Incineration
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Landfilling
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Recycling
A
Correct answer
Explanation
Composting is the process of converting organic waste, such as food scraps and yard waste, into a nutrient-rich soil amendment through the action of microorganisms.
What is the term used to describe the process of treating and disposing of hazardous waste?
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Waste reduction
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Waste management
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Waste disposal
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Waste treatment
D
Correct answer
Explanation
Waste treatment refers to the processes and technologies used to treat hazardous waste to reduce its toxicity and make it safe for disposal or reuse.
What is the term used to describe the process of returning a spacecraft carrying mined materials from a meteoroid or asteroid back to Earth?
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Sample return mission
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Asteroid return mission
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Meteoroid return mission
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Spacecraft return mission
A
Correct answer
Explanation
Sample return mission refers to the process of returning a spacecraft carrying samples or mined materials from a meteoroid or asteroid back to Earth for further analysis and study.
What is the term used to describe the process by which nutrients are recycled in an aquatic ecosystem?
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Nitrogen Cycle
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Carbon Cycle
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Phosphorus Cycle
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Hydrologic Cycle
A
Correct answer
Explanation
The nitrogen cycle is a biogeochemical cycle that involves the conversion of nitrogen gas into various forms that can be used by living organisms.
What is the term used to describe the process by which organic matter is broken down by microorganisms in an aquatic ecosystem?
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Decomposition
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Mineralization
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Nitrification
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Denitrification
A
Correct answer
Explanation
Decomposition is the process by which organic matter is broken down into simpler substances by microorganisms, such as bacteria and fungi.