AR ENV Environmental Systems
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1. What is the primary purpose of an environmental impact assessment
(EIA)?
A. To increase project costs
B. To predict environmental consequences of a project
C. To avoid legal responsibilities
D. To design architectural structures
B. To predict environmental consequences of a project
Rationale: An EIA is conducted to evaluate the potential
environmental effects of a project before it proceeds, allowing
mitigation of negative impacts.
2. Which of the following is considered a renewable energy source?
A. Coal
B. Natural Gas
C. Solar
D. Oil
C. Solar
Rationale: Solar energy is replenished naturally and can be used
continuously without depletion, unlike fossil fuels.
3. What is the main goal of wastewater treatment?
A. Increase water temperature
B. Reduce pollutants before discharge
C. Increase chemical content
, D. Remove oxygen from water
B. Reduce pollutants before discharge
Rationale: Wastewater treatment removes contaminants to protect
human health and the environment.
4. Which gas is primarily responsible for global warming?
A. Oxygen
B. Carbon Dioxide
C. Nitrogen
D. Argon
B. Carbon Dioxide
Rationale: Carbon dioxide traps heat in the atmosphere, contributing
significantly to climate change.
5. What does the term “sustainable development” mean?
A. Development with unlimited resource use
B. Meeting present needs without compromising future generations
C. Prioritizing industrial growth over the environment
D. Maximizing short-term profits
B. Meeting present needs without compromising future generations
Rationale: Sustainability focuses on balancing economic, social, and
environmental needs for long-term viability.
6. Which of the following is a point source of pollution?
A. Runoff from agricultural fields
B. Discharge from a factory pipe
C. Urban stormwater
D. Acid rain
B. Discharge from a factory pipe
Rationale: Point sources are identifiable, discrete sources of
pollution, such as pipes or vents.
7. The Clean Air Act primarily regulates:
A. Soil erosion
B. Air pollution
C. Waterborne diseases
D. Waste disposal
B. Air pollution
Rationale: The Clean Air Act establishes standards to control
pollutants emitted into the air.
, 8. Which of the following best describes a wetland?
A. A dry, sandy area
B. A water-saturated ecosystem with unique vegetation
C. A mountain peak
D. A desert area
B. A water-saturated ecosystem with unique vegetation
Rationale: Wetlands are areas where water covers the soil or is
present near the surface, supporting hydrophilic plants.
9. What is the most effective method for controlling soil erosion?
A. Deforestation
B. Planting vegetation cover
C. Paving over land
D. Burning topsoil
B. Planting vegetation cover
Rationale: Vegetation stabilizes soil, reducing erosion by wind and
water.
10. What is the major contributor to acid rain?
A. Sulfur dioxide and nitrogen oxides
B. Oxygen and nitrogen
C. Carbon monoxide
D. Methane
A. Sulfur dioxide and nitrogen oxides
Rationale: These gases react with water in the atmosphere to form
acidic precipitation.
11. Which of the following is a non-point source of pollution?
A. Wastewater discharge pipe
B. Oil runoff from roads
C. Industrial smokestack
D. Household septic tank
B. Oil runoff from roads
Rationale: Non-point sources are diffuse and cannot be traced to a
single source.
12. Biodegradable waste is:
A. Waste that cannot decompose
B. Waste that can be broken down by microorganisms
C. Nuclear waste
D. Synthetic plastic waste
Contractor Exam Questions And
Correct Answers (Verified Answers) Plus
Rationale2026 Q&A| Instant Download
1. What is the primary purpose of an environmental impact assessment
(EIA)?
A. To increase project costs
B. To predict environmental consequences of a project
C. To avoid legal responsibilities
D. To design architectural structures
B. To predict environmental consequences of a project
Rationale: An EIA is conducted to evaluate the potential
environmental effects of a project before it proceeds, allowing
mitigation of negative impacts.
2. Which of the following is considered a renewable energy source?
A. Coal
B. Natural Gas
C. Solar
D. Oil
C. Solar
Rationale: Solar energy is replenished naturally and can be used
continuously without depletion, unlike fossil fuels.
3. What is the main goal of wastewater treatment?
A. Increase water temperature
B. Reduce pollutants before discharge
C. Increase chemical content
, D. Remove oxygen from water
B. Reduce pollutants before discharge
Rationale: Wastewater treatment removes contaminants to protect
human health and the environment.
4. Which gas is primarily responsible for global warming?
A. Oxygen
B. Carbon Dioxide
C. Nitrogen
D. Argon
B. Carbon Dioxide
Rationale: Carbon dioxide traps heat in the atmosphere, contributing
significantly to climate change.
5. What does the term “sustainable development” mean?
A. Development with unlimited resource use
B. Meeting present needs without compromising future generations
C. Prioritizing industrial growth over the environment
D. Maximizing short-term profits
B. Meeting present needs without compromising future generations
Rationale: Sustainability focuses on balancing economic, social, and
environmental needs for long-term viability.
6. Which of the following is a point source of pollution?
A. Runoff from agricultural fields
B. Discharge from a factory pipe
C. Urban stormwater
D. Acid rain
B. Discharge from a factory pipe
Rationale: Point sources are identifiable, discrete sources of
pollution, such as pipes or vents.
7. The Clean Air Act primarily regulates:
A. Soil erosion
B. Air pollution
C. Waterborne diseases
D. Waste disposal
B. Air pollution
Rationale: The Clean Air Act establishes standards to control
pollutants emitted into the air.
, 8. Which of the following best describes a wetland?
A. A dry, sandy area
B. A water-saturated ecosystem with unique vegetation
C. A mountain peak
D. A desert area
B. A water-saturated ecosystem with unique vegetation
Rationale: Wetlands are areas where water covers the soil or is
present near the surface, supporting hydrophilic plants.
9. What is the most effective method for controlling soil erosion?
A. Deforestation
B. Planting vegetation cover
C. Paving over land
D. Burning topsoil
B. Planting vegetation cover
Rationale: Vegetation stabilizes soil, reducing erosion by wind and
water.
10. What is the major contributor to acid rain?
A. Sulfur dioxide and nitrogen oxides
B. Oxygen and nitrogen
C. Carbon monoxide
D. Methane
A. Sulfur dioxide and nitrogen oxides
Rationale: These gases react with water in the atmosphere to form
acidic precipitation.
11. Which of the following is a non-point source of pollution?
A. Wastewater discharge pipe
B. Oil runoff from roads
C. Industrial smokestack
D. Household septic tank
B. Oil runoff from roads
Rationale: Non-point sources are diffuse and cannot be traced to a
single source.
12. Biodegradable waste is:
A. Waste that cannot decompose
B. Waste that can be broken down by microorganisms
C. Nuclear waste
D. Synthetic plastic waste
