Graduation from high school is an indicator that you are persistent and can make it to college. The next step is college or a vocation. It's like a rite of passage, you are an adult. You are ready for the world and the world is ready for you. Graduation from high school may be the hardest thing you've done, however you are prepared for life.
A. Byzantine Empire, this is the answer
Number 3 keeps the planets in orbit.
2 people respond to the same stressor because for one their different people secondly it depends on how they asses the situation good luck hope i can be of help.....
