On page 1 of Passage 2, what does the
phrase "at the mercy of" suggest about the
weather during the time the Norse lived in
Greenland?

Incomplete question. However, I inferred how the phrase is used in everyday conversation.

The situation was beyond anyone's control.

Explanation:

It is fitting to use this phrase because of what we know about Greenland, it is an area that faces extreme cold weather which is highly uncontrollable.

Thus, the phrase "at the mercy of" suggest that the weather made them vulnerable to any condition.

i think its c or d, its been awhile since i read this book

if this is a true or false question its true