The two Rivers that meet at the mouth of Rio de la Plata forming its estuary are Rio Parana and Uruguay. Parana river runs through Central South America,Brazil, Paraguay, and Argentina some 4,880 kilometres .Uruguay river runs north to south and separates boundaries of Brazil, Argentina, and Uruguay.
Answer:
precipitate
Explanation:
A precipitate is a solid product that forms from a reaction and settles out of a liquid mixture. The formation of a precipitate may also indicate the occurrence of a chemical reaction