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

What is the name of the process by which molecules in ice grains are broken down into simpler molecules?

  1. Photodissociation

  2. Radiolysis

  3. Ionization

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

Photodissociation is the process by which molecules in ice grains are broken down into simpler molecules through the interaction with ultraviolet radiation.

Multiple choice

Which of the following is an example of an in-situ remediation technology?

  1. Pump-and-treat

  2. Soil vapor extraction

  3. Bioremediation

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

Bioremediation is an in-situ remediation technology that utilizes microorganisms to degrade or transform contaminants into less harmful substances.

Multiple choice

Which of the following is an example of an ex-situ remediation technology?

  1. Pump-and-treat

  2. Soil vapor extraction

  3. Bioremediation

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

Excavation is an ex-situ remediation technology that involves removing contaminated soil or groundwater and treating it off-site.

Multiple choice

What is the term used to describe the process by which plants absorb carbon dioxide from the atmosphere and release oxygen?

  1. Photosynthesis

  2. Respiration

  3. Transpiration

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

Photosynthesis is the process by which plants absorb carbon dioxide from the atmosphere and release oxygen, using sunlight as an energy source.

Multiple choice

What is the term for the process of recycling water in aquaculture systems?

  1. Recirculating aquaculture systems

  2. Aquaponics

  3. Biofiltration

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

Recirculating aquaculture systems involve treating and reusing water in aquaculture facilities, reducing water consumption and waste discharge.

Multiple choice

What is the term for the practice of using fish waste as a fertilizer in agriculture?

  1. Aquaculture-agriculture integration

  2. Aquaponics

  3. Fertigation

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

Fertigation involves using fish waste as a liquid fertilizer in agriculture, providing nutrients for crops and reducing the need for chemical fertilizers.

Multiple choice

What is the term for the process by which organic remains become fossilized?

  1. Diagenesis

  2. Lithification

  3. Permineralization

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

Fossilisation is the process by which organic remains are transformed into fossils through a series of physical, chemical, and biological processes.

Multiple choice

What is the term for the process by which organic matter is replaced by minerals, preserving the original structure of the organism?

  1. Carbonization

  2. Permineralization

  3. Replacement

  4. Mold and Cast
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Permineralization is the process by which minerals, such as silica or calcium carbonate, fill the pores and replace the organic matter of an organism, preserving its original structure.

Multiple choice

What is the term for the process by which organic matter is converted into a carbon-rich film?

  1. Carbonization

  2. Permineralization

  3. Replacement

  4. Mold and Cast
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbonization is the process by which organic matter is converted into a carbon-rich film, preserving the general shape and structure of the organism.

Multiple choice

What is the term for the process by which a mold of an organism is formed in sediment, which is later filled with minerals to create a cast?

  1. Carbonization

  2. Permineralization

  3. Replacement

  4. Mold and Cast
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Mold and Cast is the process by which a mold of an organism is formed in sediment, which is later filled with minerals to create a cast, preserving the shape and details of the organism.

Multiple choice

What is the term for the process by which organic matter is replaced by silica, preserving the fine details of the organism?

  1. Carbonization

  2. Permineralization

  3. Replacement

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

Silicification is the process by which organic matter is replaced by silica, preserving the fine details of the organism, including cellular structures.

Multiple choice

What is the term for the process by which organic matter is replaced by pyrite, preserving the shape and structure of the organism?

  1. Carbonization

  2. Permineralization

  3. Pyritization

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

Pyritization is the process by which organic matter is replaced by pyrite, preserving the shape and structure of the organism.

Multiple choice

What is the term for the process by which organic matter is replaced by calcite, preserving the shape and structure of the organism?

  1. Carbonization

  2. Permineralization

  3. Calcitization

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

Calcitization is the process by which organic matter is replaced by calcite, preserving the shape and structure of the organism.

Multiple choice

What is the process of using plants to remove contaminants from soil and water called?

  1. Phytoremediation

  2. Bioremediation

  3. Incineration

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

Phytoremediation is the process of using plants to remove contaminants from soil and water.

Multiple choice

What is the process of using microorganisms to remove contaminants from soil and water called?

  1. Phytoremediation

  2. Bioremediation

  3. Incineration

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

Bioremediation is the process of using microorganisms to remove contaminants from soil and water.