supercontinent
🇺🇸
/ˈsuːpərkɑːntɪnənt/
🇬🇧
/ˈsuːpəkɒntɪnənt/
A supercontinent is a huge landmass made up of multiple continents that were joined together in the past.
Scientists believe that there have been several supercontinents throughout Earth's history, such as Pangaea.
科学者たちは、地球の歴史の中でパンゲアなどいくつかの超大陸があったと信じています。