Give an example of a plant which came into India as a contaminant and is a cause of pollen allergy.

Give an example of a plant which came into India as a contaminant and

1.	Give an example of a plant which came into India as a contaminant and is a cause of pollen allergy.
Answer» Pollen grains of many species cause servere allergies and bronchial conditions such as carrot grass that came into India as a contaminant with imported wheat.

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Give an example of a plant which came into India as a contaminant and is a cause of pollen allergy.

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