Question 1
A sunny-day air monitoring event shows increased nitrogen oxides and volatile organic compounds followed by higher ozone levels. Which pollutant is being measured?
Show answer & explanation
Correct answer: B - Ground-level ozone
10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The CES exam has 100 questions and runs 2 hours.
These 10 free CES questions are organized by exam domain, so you can see how each part of the Certified Environmental Scientist blueprint is tested. Reveal the answer and explanation under each question.
A sunny-day air monitoring event shows increased nitrogen oxides and volatile organic compounds followed by higher ozone levels. Which pollutant is being measured?
Correct answer: B - Ground-level ozone
A particle with an aerodynamic diameter of 2.0 micrometers is classified as:
Correct answer: B - PM2.5
A wastewater facility removes large suspended solids before biological treatment. This stage is:
Correct answer: A - Primary treatment
A lake develops algal blooms after fertilizer runoff increases nutrient loading. What process is occurring?
Correct answer: A - Eutrophication
A waste sample is corrosive but not ignitable, reactive, or toxic. Under RCRA characteristics, it is:
Correct answer: B - Hazardous waste
Which option is highest priority in the waste hierarchy?
Correct answer: A - Source reduction
A property with possible contamination from a former industrial use that may complicate redevelopment is a:
Correct answer: B - Brownfield
Which radiation type generally requires the greatest shielding because of high penetration?
Correct answer: C - Gamma
A farmer uses monitoring, prevention, and targeted low-toxicity controls before pesticides. This is:
Correct answer: A - Integrated Pest Management
A leaking tank contaminates groundwater used by nearby residents. The connection among source, pathway, and people is called:
Correct answer: A - Exposure pathway
The full bank has 1,020 more CES questions with explanations.
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