Birds. Since birds can fly, they could get to the barren island and on their way, they could pick up seeds in their feathers and carry them to the barren island.
Wind. Wind blows everywhere on earth
Floating vegetation
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Answer:
Birds. Since birds can fly, they could get to the barren island and on their way, they could pick up seeds in their feathers and carry them to the barren island
Wind. Wind blows everywhere on earth.
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