Which factor causes earth’s seasons?
earth’s distance from the sun during its orbit
the equator’s division of earth into northern and southern hemispheres
the tilt of earth’s axis as it orbits around the sun
earth’s completion of its orbit around the sun every 365.25 days

The a metal retainer that keeps the rolling elements evenly spaced. n a. seal n b. separator n c. bearing n d outer race

The frequencies refer to the sample data collected from a population of interest when performing a hypothesis test comparing two or more population proportions.

Imagine that you have two balloons (or, better yet, actually inflate two balloons, if possible). create static electricity around one of the balloons by rubbing it against your hair or your sweater and then bring that balloon close to the other balloon, which has not been charged. try this with at least one other object—and for variety in the discussion, avoid using an object already described by your classmates. then, for your initial post to the discussion, answer the following questions: what happened with the two balloons?