What is the name of a supercontinent that was once made up of all of Earth's current continents?

Pangaea

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The name of the supercontinent that was once made up of all of Earth's current continents is Pangaea.

The correct answer is Pangaea. Pangaea is the name of the supercontinent that existed around 300 million years ago. To find the answer, you can either recall the information if you have learned it before or conduct a search using an internet search engine. Simply type in the keywords "supercontinent made up of all Earth's continents" or a similar phrase, and you will likely find information about Pangaea. Remember to critically evaluate the sources you use to ensure their credibility and accuracy.