A non-natural phenomenon is an event or process that is caused by human activities rather than occurring naturally in the environment.
Explanation:
- Natural phenomena occur without human intervention
Examples: rain, earthquakes, lightning, volcanic eruptions
- Not natural phenomena (man-made):
Examples:
- Pollution
- Deforestation
- Nuclear explosions
- Industrial emissions
Key Insight:
- The correct answer in exams depends on the given options
- Any process caused by human action is considered not a natural phenomenon
Conclusion:
Processes like pollution or nuclear explosions are not natural phenomena because they result from human activities.