Concept:
A cyclone is a large-scale atmospheric disturbance characterized by strong winds rotating around a low-pressure center. Cyclones are important meteorological phenomena and are classified under atmospheric disasters.
Step 1: Understand the formation of a cyclone.
Cyclones form over warm ocean waters when moist air rises rapidly, creating an area of low pressure. Surrounding air rushes inward and begins to rotate due to the Earth's rotation.
Step 2: Identify the scientific category.
Since cyclones involve:
• Air pressure changes
• Wind systems
• Atmospheric circulation
• Weather disturbances
they belong to atmospheric phenomena.
Step 3: Analyze the options.
Bay of Bengal is a region where many cyclones originate, but a cyclone itself is not classified as a Bay of Bengal phenomenon.
Air pollution is unrelated to cyclone formation.
Soil erosion may occur as an effect of cyclones but is not the category to which cyclones belong.
Step 4: Conclusion.
Cyclones are atmospheric natural disasters caused by large-scale weather disturbances.
Hence, option (A) is correct.