Out of the following choices, the significance of the plane selections made by the terrorists on 9-11 were that all four planes were traveling long distances, so they had significant fuel on board to burn in the crashes.
Rationalism led to the use of empiricism, or observation, in science. Francis Bacon invented the scientific method based on rationalism. It also lessened overbearing religious dogma
The cultural change that resulted from an eight hour workday was that leisure times was "invented" people suddenly had more time as they were able to work for only 8 hours, they could spend other time doing other things.
Sets the mission statement--the preamble sets a mission statement or goal of the document and what it seeks to provide through the UN.
The UN's Universal Declaration of Human Rights focuses on the well-being of world citizens and the responsibility of countries to protect the rights of their people. This declaration has set guidelines for expected behavior of countries and continually revises their perspective on human rights issues.