It is correct because Eleanor Roosevelt did serve in as chair of the United Nations Commission on Human Rights and she was instrumental in creating the universal declaration of human rights.
Answer: no
Explanation:it is a verb like
The captain orders the crew to turn back.
it is not a noun at all but a verb
hope this helps
The second sentence has The correct spelling.: Absence.
Although the grammar should probably be we were shocked by her absence from the ceremony.