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Seasonal allergens that may cause hay fever include:

Brutusandmoose

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Posts: 822

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7 years ago

Seasonal allergens that may cause hay fever include:

Seasonal allergens that may cause hay fever include:
A) ragweed pollen.
B) tree pollen.
C) grass pollen.
D) all of the above.

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ccopp

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#1

7 years ago

D

Brutusandmoose Author

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#2

7 years ago

Thank u

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