Which of the following statement is related with the 'Sulphur shower'?

Question: Which of the following statement is related with the 'Sulphur shower'?

1.Discharge of large quantities of Crocus (yellow kesar) pollen grains into the air.

2. Discharge of large quantities of pinus pollen grains into the air forming yellowish clouds.

3.Release of a large amount of sulphur particles into the air from factories processing sulphur.

4. Release of a large amount of sulphur particles into the air near sulphur mines.


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