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.
Geography is a field of science devoted to the study of the lands, the features, the inhabitants, and the phenomena of Earth.
Answer:
The third one is correct
Explanation:
So a primary source is when a person goes out to find out on somethig for themselves.
The third is the best according to me because you are asking someone directly about something.
HOPE IT HELPED
Answer and Explanation:
What one can do is to try dissolving the powder in 
; if the powder fails to get dissolved, then we can state that it is a non polar compound. Non-polar compounds are known as or referred to as the compounds which tends to not have the slightly positive and negative charges within the given compound. Electronegativity differences of these compounds are mostly in between 0 and 0.2.
