Answer the following questions:

What could be the reasons behind the formation of swamps in the extensive continental location of Pantanal?

Pantanal is one of the largest wetlands in the world, lying towards the southwest part of the highland areas. It is a region of swamps and marshes in northwestern Mato Grosso do Sul in Brazil and, extending into Argentina too. It is a very precious resource of Brazil, home to an array of plant- and animal species.

Water from the Planalto highlands flows into the gradually-sloped, large depression of Pantanal. From there, the water flows out as the Paraguay River and its tributaries. The Pantanal forms a vast swampy area as a result of deposits from the several rivers and water systems flowing into it.