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  1. The pioneers in xerach succession is the

    2. A.

     crustose lichen
    B.

     mosses
    C.

     foliose lichen
    D.

     shrubs

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    Answer : Option A

    Explanation :

    The pioneer species in xerarch and hydrarch succession are lichens and phytoplanktons respectively. Xerarch is a plant succession starting on bare ground or rock and culminating in a mature climax forest. The pioneer species, such as lichens and mosses, result in the gradual accumulation of soil.

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