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 of separating minerals from waste rock?

  1. Mining

  2. Exploration

  3. Processing

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

Processing is the process of separating minerals from waste rock, typically through the use of physical and chemical methods.

Multiple choice

What is the term used for the removal of unwanted materials, such as rock or soil, from a mine site?

  1. Overburden removal

  2. Spoil removal

  3. Waste removal

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

Overburden removal refers to the process of removing unwanted materials, such as rock or soil, from a mine site to expose the underlying mineral deposit.

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 capture and utilization (CCU)

  3. Carbon capture and sequestration (CCS)

  4. Carbon capture and removal (CCR)
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Carbon capture and storage (CCS) is the term used to describe the process of removing carbon dioxide from the atmosphere and storing it underground.

Multiple choice

What is the term used to describe the process of reusing scrap metal without re-melting it?

  1. Smelting

  2. Casting

  3. Recycling

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

Direct reuse involves using scrap metal directly without re-melting or further processing, reducing energy consumption and waste generation.

Multiple choice

What is carbon capture and storage (CCS)?

  1. A process for capturing carbon dioxide from the atmosphere and storing it underground

  2. A process for capturing carbon dioxide from industrial emissions and storing it underground

  3. A process for capturing carbon dioxide from transportation emissions and storing it underground

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

Carbon capture and storage (CCS) is a process for capturing carbon dioxide from the atmosphere, industrial emissions, or transportation emissions and storing it underground.

Multiple choice

What is the term used to describe waste that can be broken down naturally by microorganisms?

  1. Biodegradable waste

  2. Non-biodegradable waste

  3. Recyclable waste

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

Biodegradable waste is waste that can be decomposed by microorganisms into simpler substances, such as carbon dioxide, water, and biomass.

Multiple choice

What is the term used to describe the process of breaking down organic waste into a nutrient-rich soil amendment?

  1. Recycling

  2. Composting

  3. Incineration

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

Composting is the process of breaking down organic waste into a nutrient-rich soil amendment, which can be used to improve soil quality and plant growth.

Multiple choice

What is the process of converting organic materials into biogas called?

  1. Photosynthesis

  2. Anaerobic digestion

  3. Combustion

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

Anaerobic digestion is the process of breaking down organic matter in the absence of oxygen, resulting in the production of biogas.

Multiple choice

What is the term for the process of removing dirt and grime from an artwork or document?

  1. Cleaning

  2. Restoration

  3. Conservation

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

Cleaning is the process of removing dirt and grime from an artwork or document using gentle methods and materials.

Multiple choice

What is the term used to describe the process of soil degradation caused by the accumulation of toxic chemicals, often due to industrial activities or improper waste disposal?

  1. Acidification

  2. Erosion

  3. Contamination

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

Contamination is the process by which harmful substances, such as heavy metals, pesticides, or industrial chemicals, accumulate in soil, often due to improper waste disposal or industrial activities. Soil contamination can lead to land degradation, as it can inhibit plant growth, pollute water sources, and pose health risks to humans and wildlife.

Multiple choice

What is the term used to describe the process of breaking down plastic into smaller pieces?

  1. Degradation

  2. Fragmentation

  3. Decomposition

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

Fragmentation refers to the process by which plastic materials break down into smaller pieces over time.

Multiple choice

What is the term used to describe the accumulation of plastic waste in the environment?

  1. Plastic pollution

  2. Plastic contamination

  3. Plastic debris

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

Plastic pollution refers to the accumulation of plastic waste in the environment, particularly in oceans and waterways.

Multiple choice

What is the term used to describe the process of reducing the amount of plastic produced and used?

  1. Plastic reduction

  2. Plastic minimization

  3. Plastic limitation

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

Plastic reduction refers to the process of decreasing the production and use of plastic materials.

Multiple choice

What is the term used to describe the process of converting plastic waste into new products?

  1. Plastic recycling

  2. Plastic upcycling

  3. Plastic repurposing

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

Plastic recycling refers to the process of converting plastic waste into new products or materials.

Multiple choice

What is the term for the process of converting a neutral molecule into an ion?

  1. Dissociation

  2. Ionization

  3. Detection

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

Ionization refers to the process of converting a neutral molecule into an ion by adding or removing electrons.