The author uses commas in the sentence below because... * Veterans Day is a way to remember the courageous who served in the military, were, wounded, or were killed in the military.

It's a series in a list
it's an appositive
it's an introductory clause
it's separating two independent clauses

It's a series in a list

Explanation:

The author is listing out why we remember the soldiers. Commas are used to separate these words so they are not all read at one, but they are read with a pause in between.

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.

the answer is a 100% b) communism

hope dis ya ; )