The answer is She/Her Him/He They/Them Xeo/Ze
Answer:
It means that one person taking can not do it all them selves.
The answer should be in the prezi
Muir knows about the delicate nature and he appreciates the frail. Muir is also amazed by the nature, which has a great impact on us people. Muir is astonished by nature's ability to have a great influence on someone.
