From where on earth could you observe all of the stars during the course of a year? what fraction of the sky can be seen from the north pole?

The equator

Half

Explanation:

From the equator a person can observe all of the stars during the course of a year. This is because the equator is the part of the Earth where the upward and downward curve of the sphere of Earth meet.

When you are at the North pole you will only be able to see what is visible from the North pole and the southern hemisphere sky would not be seen. So, only half of the sky would be seen.

this is an example of "committed" time.

committed time, as contracted time, takes need over essential and available time since it is seen as profitable work. it alludes to the time allotted to keep up a home and family. at the point when a man is commuting using committed time this individual may feel that the drive is an obligation to family, for example, strolling youngsters to class or driving a mate to work. contracted and committed time clients may feel that their commute could really compare to the commute of important or leisure time clients on the grounds that their commute is profitable work. in this manner, they might be more disposed to pick a mechanized method of movement.