are Chile, Argentina, and Brazil the only countries that share a border with Bolivia and Paraguay?

No.

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Do you want the countries that border both countries? Or do you want the countries that border each country?

that border both countries

Chile does not border Paraguay.

To determine if Chile, Argentina, and Brazil are the only countries that share a border with Bolivia and Paraguay, we can consult a map or utilize online resources. Here's one way to find the answer:

1. Open a web browser and go to a search engine like Google.
2. Type in "map of Bolivia and Paraguay" and hit Enter.
3. You will be provided with various image results and map websites. Click on an image or a reliable map website to view a map of Bolivia and Paraguay.
4. Identify the bordering countries of Bolivia and Paraguay on the map. These countries will be marked as neighboring countries that directly touch the borders of Bolivia and Paraguay.
5. While examining the map, note any additional countries that share a border with Bolivia and Paraguay apart from Chile, Argentina, and Brazil.
6. Based on the information obtained from the map, you can determine if Chile, Argentina, and Brazil are indeed the only countries that share a border with Bolivia and Paraguay.

Remember to use reputable sources and ensure the accuracy of the information obtained from the map or online resources.