science
Grade-3
Easy
Question
With the excessive use of air conditioners and refrigerators, humans have been adding …………………. into the environment that affect the atmospheric ozone layer.
- Chlorofluorocarbons
- Methane
- Carbon dioxide
- Nitrogen
Hint:
Ozone in the upper atmosphere is destroyed by man-made substances such halons, hydrofluorocarbons, and chlorofluorocarbons (CFCs) (stratosphere).
The correct answer is: Chlorofluorocarbons
- The major culprit behind the ozone layer hole is CFCs.
- The production of such substances has been phased down since CFCs contribute to the destruction of ozone in the upper atmosphere.
Related Questions to study
science
Which of the following are the main contributors to acid rain?
Which of the following are the main contributors to acid rain?
scienceGrade-3
science
The climatic imbalance is the result of
The climatic imbalance is the result of
scienceGrade-3
science
Acid rain causes damage to
Acid rain causes damage to
scienceGrade-3
science
We, human beings, depend on our …………. for all our needs
We, human beings, depend on our …………. for all our needs
scienceGrade-3
science
The gaseous discharge from industries causes
The gaseous discharge from industries causes
scienceGrade-3
science
What is sewage?
What is sewage?
scienceGrade-3
science
Gaseous discharge from industries causes
Gaseous discharge from industries causes
scienceGrade-3
science
The below image is related to:
The below image is related to:
scienceGrade-3
science
Harmful changes made in the environment due to human activities are called:
Harmful changes made in the environment due to human activities are called:
scienceGrade-3
science
Non-living things do not
Non-living things do not
scienceGrade-3
science
Which of the following can grow?
Which of the following can grow?
scienceGrade-3
science
The image below is an example of
The image below is an example of
scienceGrade-3
science
Which of the following is needed to breathe for living organisms?
Which of the following is needed to breathe for living organisms?
scienceGrade-3
science
Find the odd one out.
Find the odd one out.
scienceGrade-3
science
What does the image below represent?
What does the image below represent?
scienceGrade-3
