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The opening sentence describes archaeological evidence as being found beneath the Amazon rainforest's "dense canopy." Later, the article explains that LiDAR sends laser pulses through gaps between trees in order to map the surface below.

In this context, "canopy" refers to: 
The article combines a headline designed to attract attention, numerical information from research, explanations of archaeological technology, and quotations attributed to a specialist involved in the study. These elements contribute differently to the construction of the report.

Considering its communicative organization, the text is characterized as:
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Before LiDAR surveys became available, archaeologists were largely restricted to investigating areas in which the forest had already been cleared. The article links this methodological limitation to an interpretation of ancient settlement patterns that is now being reconsidered.

Which inference is supported by this relationship?
The article begins with the discovery of evidence for a large pre-Columbian population and subsequently explains the technological and archaeological basis for revising previous assumptions about Amazonia. The final paragraphs expand the implications of the findings beyond the particular region investigated.

Which statement represents the central argument developed throughout the text?