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 term used to describe the process by which plants absorb and accumulate pollutants from the soil?

  1. Phytoremediation

  2. Mycoremediation

  3. Bioaugmentation

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

Phytoremediation is the process by which plants absorb and accumulate pollutants from the soil. Plants can take up pollutants through their roots and store them in their tissues, thereby reducing the concentration of pollutants in the soil.

Multiple choice

Which of the following is an example of a bioremediation technology used to remove heavy metals from soil?

  1. Phytoremediation

  2. Mycoremediation

  3. Bioaugmentation

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

Electrokinetic remediation is a bioremediation technology that uses an electric field to remove heavy metals from soil. The electric field causes the heavy metals to migrate towards the electrodes, where they can be collected and removed.

Multiple choice

What is the term used to describe the process of recovering valuable materials from waste or by-products?

  1. Recycling

  2. Pyrolysis

  3. Incineration

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

Recycling involves the collection and processing of waste materials to extract valuable materials and convert them into new products or raw materials.

Multiple choice

What is the term used to describe the process of recovering valuable materials from waste or by-products?

  1. Recycling

  2. Pyrolysis

  3. Incineration

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

Recycling involves the collection and processing of waste materials to extract valuable materials and convert them into new products or raw materials.

Multiple choice

What is the term used to describe the process of removing carbon dioxide from the atmosphere?

  1. Carbon capture and storage (CCS)

  2. Carbon sequestration

  3. Carbon offsetting

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

Carbon capture and storage (CCS) involves capturing carbon dioxide from industrial sources and storing it underground or in geological formations.

Multiple choice

What is the name of the process in which a substance loses electrons?

  1. Oxidation

  2. Reduction

  3. Neutralization

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

Oxidation is the process in which a substance loses electrons, resulting in an increase in its oxidation state.

Multiple choice

What is the term for the practice of reducing the amount of waste produced by an event or activity?

  1. Waste reduction

  2. Waste minimization

  3. Zero waste

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

Waste reduction is the practice of reducing the amount of waste produced by an event or activity.

Multiple choice

What is the term for the practice of reducing the amount of waste produced by an event or activity?

  1. Waste reduction

  2. Waste minimization

  3. Zero waste

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

Waste reduction is the practice of reducing the amount of waste produced by an event or activity.

Multiple choice

What is the term used for the process of removing contaminants from recyclable paper and cardboard?

  1. Sorting

  2. Deinking

  3. Pulping

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

Sorting is the process of removing contaminants such as plastics, metals, and non-recyclable paper grades from recyclable paper and cardboard to ensure the quality of the recycled materials.

Multiple choice

What is the term used to describe the process of intentionally setting fires in a controlled manner?

  1. Fire suppression

  2. Fire management

  3. Controlled burning

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

Controlled burning is the process of intentionally setting fires in a controlled manner, typically to reduce fuel loads and prevent larger, more destructive wildfires.

Multiple choice

What is the term used to describe the process of creating a fire break to stop the spread of a fire?

  1. Fire suppression

  2. Fire management

  3. Controlled burning

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

Backfiring is the process of creating a fire break to stop the spread of a fire by intentionally setting a fire in front of the main fire front.

Multiple choice

What is the term used to describe the process of removing excess nutrients, particularly nitrogen and phosphorus, from water bodies?

  1. Bioremediation

  2. Phytoremediation

  3. Eutrophication

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

Denitrification is the process by which certain bacteria convert nitrates into nitrogen gas, removing excess nitrogen from water bodies and reducing eutrophication.

Multiple choice

What is the term used for the process of turning clothes into organic matter through biological decomposition?

  1. Upcycling

  2. Downcycling

  3. Recycling

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

Composting involves turning clothes into organic matter through biological decomposition, which can then be used as fertilizer.

Multiple choice

What is the term used to describe the process by which a nuclear reactor is shut down and decommissioned?

  1. Nuclear Decommissioning

  2. Nuclear Shutdown

  3. Nuclear Retirement

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

Nuclear decommissioning is the process by which a nuclear reactor is shut down and decommissioned, involving the removal of radioactive materials and the dismantling of the reactor.

Multiple choice

What is the term for the process of removing the shell from a shrimp?

  1. Peeling

  2. Deveining

  3. Shucking

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

Peeling refers to the process of removing the hard outer shell from a shrimp, exposing the tender meat inside.