Língua Inglesa - Interpretação de Texto - Centro de Seleção e de Promoção de Eventos UnB (CESPE) - 2002
It can be concluded from text LI-I that
the root cause of degradation has already been identified.
the deposition of sediments has been removed.
nutrients have contaminated the system.
flow modifications have brought about some undesirable effects on the SFRB.
never before had there been any land degradation.
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