What is meant by the Pangaea

Pangaea was a supercontinent that existed during the Paleozoic and early Mesozoic eras. It assembled from earlier continental units approximately 335million years ago, and it began to break apart about 175 million years ago.

b

he spent it on fancy clothes, gambling, and having fun.

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain