✔ primary successionX secondary succession

Question

Revolt · Accepted Answer

✔ primary succession; In coastal areas, wind moves sand, blowing away or engulfing the soil, and eventually creating sand dunes:: primary succession; The introduction of livestock to an area leads to over-grazing that removes native grasses:: secondary succession; A forest is cleared to gather lumber used for building houses:: secondary succession; A lava flow down the side of a volcano destroys all vegetation and eventually turns into volcanic rock when it cools and hardens:: primary succession

Succession and Extinction

✔ primary successionX secondary succession

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