Which Is an Example of Secondary Succession

question 49

Multiple Choice

Which is an example of secondary succession?

• A)Beach grasses colonize a newly formed sand dune.
• B)Retreating glaciers leave alluvial soils for cottonwood trees to colonize.
• C)A shift in river flow introduces sediment to a rocky area.
• D)A farmer allows an agricultural field to return to native grassland.

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