The Amazon Basin is the part of South America drained by the Amazon River and its tributaries. The basin is located mainly (40%) in Brazil, but also stretches into Peru and several other countries.
Yes
Australia
Its closest neighbour in size would be Australia.
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Australia - 7,617,930 km2 France - 674,843 km2 Australia is about 11 times the size of France.
No - Australia's Great Artesian Basin is a huge underground water supply. Occupying an area one-fifth of Australia's size, it is one of the largest artesian groundwater basins in the world. It is quite different to North America's Great Basin Desert.
The Amazon River accounts for about a fifth of the drainage of all the rivers in the world! That means that of all the water (volume) drained by all the rivers of the world, the Amazon alone handles about 20% or 1/5th of it. That's a lotof water! Additionally the Amazon basin, the name given to the area of land that the Amazon drains, is the largest river basin in the world. The Amazon is clearly the largest river in the world. Note that by some geographic fluke, the Nile River is a tiny bit longer than the Amazon. A link can be found below.
The Amazon River of South America is the second longest river in the world with an average discharge greater than the next six largest rivers combined. The Amazon, which has the largest drainage basin in the world, about 7,050,000 square kilometres (2,720,000 sq mi), accounts for approximately one-fifth of the world's total river flow. The river drains into the Atlantic Ocean.
The AmazonThe Amazon rainforest. Same name as the world's second longest river, also in Brazil.The rainforest in Brazil is located in the Amazon Basin and the rainforest is called the Amazon Rainforest.
Australia 7,741,000 square Kilometres Chad 1,284,000 square Kilometres ie Australia is 6 times the size of Chad (in area)
Any number of comparisons might be drawn involving the size of Australia.The size of Australia is approximately the same as that of the 48 contiguous states of the USA ("the Lower 48"), which is to say the continental USA minus Alaska.
Have you checked the size of each country on an Atlas/Map?