EPA 608 CORE Exam 2026 Questions
and Answers
Can chlorine in the stratosphere be from natural sources, such as volcanoes?
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 - Correct answer-B.
Yes, chlorine can come from natural sources such as volcanoes, but they are not the
primary source
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 1
,Ground level ozone is what absorbs and reflects harmful UV rays from the sun.
A.
TRUE
B.
FALSE - Correct answer-B.
FALSE
In which of the following ways does ozone depletion affect humans?
A. Increased risk of heart disease
B. Increased risk of skin cancer
C. Increased risk of nose cancer
D. Increased risk of cataracts
E. Increased risk of Skin Cancer and Cataracts - Correct answer-E. Increased risk
of Skin Cancer and Cataracts
Is there evidence that refrigerants are in the stratosphere?
A.
Yes
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 2
,B.
No
C.
Inconclusive - Correct answer-YES
One molecule of chlorine can destroy how many molecules of ozone?
A. 3000
B. 100,000
C. 300,000
D. 10,000,000 - Correct answer-B. 100,000
Ozone has __ atoms of oxygen.
A. 2
B. 3
C. 8
D. 10 - Correct answer-3
The majority of ozone is located in the Troposphere.
A.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 3
, TRUE
B.
FALSE - Correct answer-FALSE
How many molecules of ozone can three molecules of chlorine destroy?
A. 3,000
B. 100,000
C. 300,000
D. 10,000,000 - Correct answer-C. 300,000
What is the major function of ozone in the stratosphere?
A.
Absorb and reflect UV rays from the sun
B.
Create UV rays by using rays from the sun
C.
Direct UV rays from the sun to humans
D.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 4
and Answers
Can chlorine in the stratosphere be from natural sources, such as volcanoes?
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 - Correct answer-B.
Yes, chlorine can come from natural sources such as volcanoes, but they are not the
primary source
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 1
,Ground level ozone is what absorbs and reflects harmful UV rays from the sun.
A.
TRUE
B.
FALSE - Correct answer-B.
FALSE
In which of the following ways does ozone depletion affect humans?
A. Increased risk of heart disease
B. Increased risk of skin cancer
C. Increased risk of nose cancer
D. Increased risk of cataracts
E. Increased risk of Skin Cancer and Cataracts - Correct answer-E. Increased risk
of Skin Cancer and Cataracts
Is there evidence that refrigerants are in the stratosphere?
A.
Yes
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 2
,B.
No
C.
Inconclusive - Correct answer-YES
One molecule of chlorine can destroy how many molecules of ozone?
A. 3000
B. 100,000
C. 300,000
D. 10,000,000 - Correct answer-B. 100,000
Ozone has __ atoms of oxygen.
A. 2
B. 3
C. 8
D. 10 - Correct answer-3
The majority of ozone is located in the Troposphere.
A.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 3
, TRUE
B.
FALSE - Correct answer-FALSE
How many molecules of ozone can three molecules of chlorine destroy?
A. 3,000
B. 100,000
C. 300,000
D. 10,000,000 - Correct answer-C. 300,000
What is the major function of ozone in the stratosphere?
A.
Absorb and reflect UV rays from the sun
B.
Create UV rays by using rays from the sun
C.
Direct UV rays from the sun to humans
D.
©C0PYRIGHT 2025, ALL RIGHTS RESERVED 4
