ADMICRO

Islands are geographical formations that are completely surrounded by water, yet many islands are (i) _______________ a rich assortment of plant life. It may seem surprising that so much plant life exists on many islands, yet there are surprisingly simple explanations as to (ii) _______the vegetation has been able to establish itself there. Some islands were formerly attached to larger bodies of land, (iii) _______others were created on their own. Islands that were created when Hooding or rising water levels cut them off from their neighbors often still have the plant life that they had before they were cut off. In cases where islands formed out of the ocean, they may have plant life from neighboring lands even though they were never actually attached to the neighboring lands. Winds (iv) _______many seeds to islands; some plants produce extremely light seeds that can float thousands of feet above the Earth and then drift down to islands where y can sprout and develop. Birds also carry seeds to islands; as birds move over open stretches of water, they can (v)       _______the transportation system to spread seeds from place to place.

(i)____-

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