Ireally need
what frightening thing, which contributes to the main idea of scientific discovery, occurs while the travelers are sailing across the central sea?

they see a beautiful light show.
they almost drown when they see an island.
they name an island after gretchen.
two sea monsters fight until one of them dies.

I think the answer is:Two sea monsters until one of them dies.
Hope it's right

The answer is 11 and sure wassup

Adjective clauses  begin with words such as that, when, where, who, whom, whose, which, and why. an essential (or restrictive)  adjective clauseprovides information that is necessary for identifying the word it modifies. so for example*** wrong= i the man gave me direction. example right ( i the man who gave me the  direction.