The 'Llanos' grasslands are found in:

Explanation

The term Llanos does not refer to every Latin American grassland. It names the specific tropical grassland and savanna region spread across western Venezuela and north-eastern Colombia. Encyclopaedia Britannica describes this region as broad grasslands drained by the Orinoco River. Its marked seasonality also helps identify it: low-lying areas flood in the wet season and dry out in the dry season. Its location, Orinoco drainage, savanna vegetation and seasonal flooding together make option A correct. RAS questions often test major grasslands by linking them with their countries and physical geography.

Why the other options are wrong

• (B) Argentina is associated here with the Pampas, not the Llanos grasslands of Venezuela and Colombia.
• (C) Brazil is associated here with Campos and Cerrado, so it does not identify the Llanos region.
• (D) Mexico has different vegetation in this comparison and is not the Orinoco-drained Llanos region.

Concept

This tests the world-geography mapping of major grasslands to their regions. It recurs in RAS because grassland names such as Llanos, Pampas, Campos and Cerrado are easy to confuse in factual map-based questions.

Source

• Encyclopaedia Britannica
• https://documents1.worldbank.org/curated/en/602251565575276312/pdf/Colombia-Orinoquia-Integrated-Sustainable-Landscapes-Project.pdf

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