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

Multiple choice

The process by which organic matter is broken down into simpler compounds by microorganisms is called:

  1. Decomposition

  2. Nitrification

  3. Denitrification

  4. Assimilation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Decomposition is the process by which organic matter is broken down into simpler compounds by microorganisms.

Multiple choice

The process by which nitrogen gas is released back into the atmosphere from soil is called:

  1. Nitrogen fixation

  2. Nitrification

  3. Denitrification

  4. Assimilation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Denitrification is the process by which nitrogen gas is released back into the atmosphere from soil.

Multiple choice

The process by which organic matter is converted into fossil fuels is called:

  1. Decomposition

  2. Nitrification

  3. Denitrification

  4. Fossilisation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Fossilisation is the process by which organic matter is converted into fossil fuels.

Multiple choice

The process by which nitrogen gas is released back into the atmosphere from soil is called:

  1. Nitrogen fixation

  2. Nitrification

  3. Denitrification

  4. Assimilation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Denitrification is the process by which nitrogen gas is released back into the atmosphere from soil.

Multiple choice

What is the term used to describe the process by which forests remove carbon dioxide from the atmosphere?

  1. Carbon sequestration

  2. Carbon storage

  3. Carbon capture

  4. Carbon fixation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon sequestration refers to the process by which forests absorb carbon dioxide from the atmosphere and store it in their biomass and soil.

Multiple choice

What is the process by which carbon dioxide dissolves in seawater and forms carbonic acid called?

  1. Carbonation

  2. Hydrolysis

  3. Acidification

  4. Dissolution
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbonation is the process by which carbon dioxide dissolves in water and forms carbonic acid.

Multiple choice

What is the term used to describe the process by which pesticides break down in the environment?

  1. Bioaccumulation

  2. Biomagnification

  3. Persistence

  4. Degradation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Degradation refers to the chemical breakdown of pesticides into simpler compounds.

Multiple choice

What is the term used to describe the process by which pesticides evaporate and enter the atmosphere?

  1. Leaching

  2. Volatilization

  3. Bioaccumulation

  4. Persistence
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Volatilization refers to the process by which pesticides evaporate and enter the atmosphere.

Multiple choice

What is the term used to describe the process of recovering valuable materials from waste?

  1. Recycling

  2. Composting

  3. Incineration

  4. Landfilling
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Recycling is the process of recovering valuable materials from waste and converting them into new products. Composting involves the decomposition of organic matter into a nutrient-rich soil amendment, incineration involves burning waste to generate energy, and landfilling involves the disposal of waste in a designated area.

Multiple choice

What is the term used to describe the process of reducing the amount of hazardous waste generated?

  1. Waste minimization

  2. Waste reduction

  3. Waste elimination

  4. Waste recycling
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Waste minimization is the process of reducing the amount of hazardous waste generated. It involves measures such as process modifications, material substitution, and improved housekeeping practices.

Multiple choice

What is the term used to describe the process of converting hazardous waste into less hazardous or non-hazardous materials?

  1. Waste treatment

  2. Waste recycling

  3. Waste disposal

  4. Waste minimization
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Waste treatment is the process of converting hazardous waste into less hazardous or non-hazardous materials. It involves various technologies such as incineration, neutralization, and solidification.

Multiple choice

What is the term used to describe the process of transporting hazardous waste from one location to another?

  1. Waste transportation

  2. Waste disposal

  3. Waste treatment

  4. Waste recycling
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Waste transportation is the process of transporting hazardous waste from one location to another. It involves the use of specialized vehicles and containers designed to prevent the release of contaminants during transport.

Multiple choice

What is the term used to describe the process of disposing of hazardous waste in a safe and environmentally sound manner?

  1. Waste disposal

  2. Waste treatment

  3. Waste recycling

  4. Waste minimization
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Waste disposal is the process of disposing of hazardous waste in a safe and environmentally sound manner. It involves the use of secure landfills, deep well injection, and other technologies designed to prevent the release of contaminants into the environment.

Multiple choice

What is the term for the process of reusing or recycling materials?

  1. Upcycling

  2. Downcycling

  3. Recycling

  4. Composting
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Recycling is the process of reusing or recycling materials. Upcycling is the process of transforming waste materials or unwanted products into new materials or products of better quality or for better environmental value. Downcycling is the process of transforming waste materials or unwanted products into new materials or products of lesser quality or for lesser environmental value. Composting is the process of breaking down organic matter into a nutrient-rich soil amendment.

Multiple choice

What is the term for the process of reducing the amount of waste produced?

  1. Waste reduction

  2. Waste minimization

  3. Source reduction

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Waste reduction, waste minimization, and source reduction are all terms used to describe the process of reducing the amount of waste produced. This can be done by reducing the amount of materials used, reusing materials, and recycling materials.