Final answer:
The statement is true. Cenotes, natural sinkholes, are usually found in places with a lot of rainfall and limestone, such as Mexico's Yucatán Peninsula.
Step-by-step explanation:
The statement in question, 'Cenotes were abundant in the rainy southern highlands where limestone is abundant', is true. Cenotes are natural pits or sinkholes that occur when the limestone bedrock, characteristic of a karst landscape, collapses, exposing groundwater beneath. They are often found in areas where limestone rock is prevalent and the climate is typically tropical, resulting in plentiful rainfall which contributes to the process of erosion and sinkhole formation. Places like the Yucatán Peninsula in Mexico are renowned for their high concentration of cenotes, attributed to the region's tropical climate and prevalent limestone geology.
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