Which of the following is a major factor in the formation of a fire whirl?
A. Subsidence
B. Intense heat from a fire
C. Strong wind shear
D. High pressure
Answer: Option B
Solution (By JKSSB Mock Tests)
Fire whirls form from the intense heat of a wildfire, which creates a rotating column of air due to the rapid rise of hot air, often exacerbated by wind shear.
Explanation:
Ozone is not a primary pollutant; it is a secondary pollutant. Primary pollutants are emitted directly into the atmosphere, such as carbon monoxide, sulfur dioxide, and nitrogen oxides.
Explanation:
The ozone hole is primarily caused by Chlorofluorocarbons (CFCs) and other ozone-depleting substances, which release chlorine and bromine atoms that catalyze the destruction of ozone in the stratosphere.
Explanation:
The highest atmospheric pressure is recorded during winter (January-February) when the land is colder and high-pressure systems develop over northern India.
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