EPA 608
EPA 608 Universal Certificate Exam
Study Questions and Answers 100%
Verified 2026 Updated
As environmental technicians, we must be up to date with which types of laws?
A. Federal Law
B. State Law
C. Local Law
D. All of these
We need to make sure we are following federal, state, and local laws.
The correct answer is: D. All of these
For the EPA 608 Universal Certification, how many questions will you receive?
A. 25
B. 50
C. 75
D. 100
EPA 608 Universal certification will be Core, Types I, II, and III. You will receive
25 Core questions, 25 Type I questions, 25 Type II questions, and 25 Type III
questions. This makes for 100 questions in total.
The correct answer is: D. 100
If you need to get Type III certification, which of the following will be on your
exam?
A. 50 questions - 25 Core questions and 25 Type III questions
B. 25 Type I questions
C. 25 Type III questions
D. 25 Core Questions
If you are taking Type III certification, you will receive 25 questions on EPA Core
content and 25 Type III questions. In total, this will be 50 questions.
EPA 608
,EPA 608
The correct answer is: A. 50 questions - 25 Core questions and 25 Type III
questions
What is the passing grade for all EPA certifications?
A. 50%
B. 70%
C. 75%
D. 90%
You need to get 70% to pass an EPA certification.
The correct answer is: B. 70%
Once you pass the EPA exam, the regulations you learned will never change. Select
one.
A. True
B. False
This statement is false. Regulations are subject to change. You must make sure you
are complying with all updated laws and regulations.
The correct answer is: B. False
Do natural events like volcanic eruptions contribute to chlorine in the stratosphere?
A. Yes, chlorine in the stratosphere is primarily from natural sources such as
volcanoes
B. Yes, chlorine can come from natural sources such as volcanoes, but they are not
the primary source
C. No, all chlorine comes from refrigerants released
D. There is no chlorine in the stratosphere
Chlorine is released from natural sources such as volcanoes. But the primary
reason for the rise of chlorine in the atmosphere is the refrigerants that have been
released.
The correct answer is: B. Yes, chlorine can come from natural sources such as
volcanoes, but they are not the primary source
EPA 608
,EPA 608
Ground level ozone is what absorbs and reflects harmful UV rays from the sun.
A. TRUE
B. FALSE
Ozone in the Stratosphere absorbs and reflects harmful UV rays from the sun, not
ground level ozone. Ground level ozone is actually harmful for humans when
inhaled.
The correct answer is: B. FALSE
In which of the following ways does ozone depletion affect humans? (Select all
that apply)
A. Increased risk of heart disease
B. Increased risk of skin cancer
C. Increased risk of nose cancer
D. Increased risk of cataracts
When ozone is depleted, there is not enough ozone present to absorb and reflect
harmful UV rays from the sun. This increases risk of skin cancer and cataracts in
humans.
The correct answers are: B. Increased risk of skin cancer, C. Increased risk of nose
cancer
Is there evidence that refrigerants are in the stratosphere?
A. Yes
B. No
C. Inconclusive
Yes, air samples taken from the stratosphere confirm that refrigerants such as CFCs
and HCFCs make it to the stratosphere, where they destroy ozone.
The correct answer is: A. Yes
Which of the following statements is TRUE about chlorine?
A. A chlorine atom can only bond once with an oxygen atom
B. A single chlorine atom can survive in the atmosphere for years
EPA 608
, EPA 608
C. Chlorine creates carbon monoxide when it destroys ozone molecules
D. A chlorine atom disintegrates quickly in the atmosphere
A single chlorine atom can survive in the atmosphere for years before
disintegrating.
The correct answer is: B. A single chlorine atom can survive in the atmosphere for
years
Ozone has __ atoms of oxygen.
A. 2
B. 3
C. 8
D. 10
Ozone is composed of 3 atoms of oxygen.
The correct answer is: B. 3
The majority of ozone is located in the Troposphere.
A. TRUE
B. FALSE
The majority of ozone is located in the Stratosphere, not the Troposphere.
The correct answer is: B. FALSE
How many molecules of ozone can three molecules of chlorine destroy?
A. 3000
B. 100000
C. 300000
D. 10000000
One molecule of chlorine can destroy 100,000 molecules of ozone. So, 3 molecules
of chlorine can destroy three times that, or 300,000 molecules of ozone.
The correct answer is: C. 300000
EPA 608
EPA 608 Universal Certificate Exam
Study Questions and Answers 100%
Verified 2026 Updated
As environmental technicians, we must be up to date with which types of laws?
A. Federal Law
B. State Law
C. Local Law
D. All of these
We need to make sure we are following federal, state, and local laws.
The correct answer is: D. All of these
For the EPA 608 Universal Certification, how many questions will you receive?
A. 25
B. 50
C. 75
D. 100
EPA 608 Universal certification will be Core, Types I, II, and III. You will receive
25 Core questions, 25 Type I questions, 25 Type II questions, and 25 Type III
questions. This makes for 100 questions in total.
The correct answer is: D. 100
If you need to get Type III certification, which of the following will be on your
exam?
A. 50 questions - 25 Core questions and 25 Type III questions
B. 25 Type I questions
C. 25 Type III questions
D. 25 Core Questions
If you are taking Type III certification, you will receive 25 questions on EPA Core
content and 25 Type III questions. In total, this will be 50 questions.
EPA 608
,EPA 608
The correct answer is: A. 50 questions - 25 Core questions and 25 Type III
questions
What is the passing grade for all EPA certifications?
A. 50%
B. 70%
C. 75%
D. 90%
You need to get 70% to pass an EPA certification.
The correct answer is: B. 70%
Once you pass the EPA exam, the regulations you learned will never change. Select
one.
A. True
B. False
This statement is false. Regulations are subject to change. You must make sure you
are complying with all updated laws and regulations.
The correct answer is: B. False
Do natural events like volcanic eruptions contribute to chlorine in the stratosphere?
A. Yes, chlorine in the stratosphere is primarily from natural sources such as
volcanoes
B. Yes, chlorine can come from natural sources such as volcanoes, but they are not
the primary source
C. No, all chlorine comes from refrigerants released
D. There is no chlorine in the stratosphere
Chlorine is released from natural sources such as volcanoes. But the primary
reason for the rise of chlorine in the atmosphere is the refrigerants that have been
released.
The correct answer is: B. Yes, chlorine can come from natural sources such as
volcanoes, but they are not the primary source
EPA 608
,EPA 608
Ground level ozone is what absorbs and reflects harmful UV rays from the sun.
A. TRUE
B. FALSE
Ozone in the Stratosphere absorbs and reflects harmful UV rays from the sun, not
ground level ozone. Ground level ozone is actually harmful for humans when
inhaled.
The correct answer is: B. FALSE
In which of the following ways does ozone depletion affect humans? (Select all
that apply)
A. Increased risk of heart disease
B. Increased risk of skin cancer
C. Increased risk of nose cancer
D. Increased risk of cataracts
When ozone is depleted, there is not enough ozone present to absorb and reflect
harmful UV rays from the sun. This increases risk of skin cancer and cataracts in
humans.
The correct answers are: B. Increased risk of skin cancer, C. Increased risk of nose
cancer
Is there evidence that refrigerants are in the stratosphere?
A. Yes
B. No
C. Inconclusive
Yes, air samples taken from the stratosphere confirm that refrigerants such as CFCs
and HCFCs make it to the stratosphere, where they destroy ozone.
The correct answer is: A. Yes
Which of the following statements is TRUE about chlorine?
A. A chlorine atom can only bond once with an oxygen atom
B. A single chlorine atom can survive in the atmosphere for years
EPA 608
, EPA 608
C. Chlorine creates carbon monoxide when it destroys ozone molecules
D. A chlorine atom disintegrates quickly in the atmosphere
A single chlorine atom can survive in the atmosphere for years before
disintegrating.
The correct answer is: B. A single chlorine atom can survive in the atmosphere for
years
Ozone has __ atoms of oxygen.
A. 2
B. 3
C. 8
D. 10
Ozone is composed of 3 atoms of oxygen.
The correct answer is: B. 3
The majority of ozone is located in the Troposphere.
A. TRUE
B. FALSE
The majority of ozone is located in the Stratosphere, not the Troposphere.
The correct answer is: B. FALSE
How many molecules of ozone can three molecules of chlorine destroy?
A. 3000
B. 100000
C. 300000
D. 10000000
One molecule of chlorine can destroy 100,000 molecules of ozone. So, 3 molecules
of chlorine can destroy three times that, or 300,000 molecules of ozone.
The correct answer is: C. 300000
EPA 608
