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Which method for impact identification in EIA links action to impact ?

  • A.Overlays
  • B.Matrices
  • C.Checklists
  • D.Ad hoc

Answer: B

The method that links action to impact is matrices.

An impact matrix lists the project's actions along one axis and the environmental components along the other. Each cell where an action affects a component is marked, often with its magnitude and importance, as in the Leopold matrix of 1971. This directly ties each action to the impact it causes.

Checklists only list the factors to consider, without connecting them to particular actions. Overlays map impacts spatially, and ad hoc methods rely on expert opinion without a structured link between action and impact.

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