In which sentence should the comma be changed to a semicolon? kayla prefers to plant flowers, but kristin thinks they are a waste of space and resources. we spilled our vegetable seeds, now we have petunias growing in our beets. the summer has been dry, yet water from the rain barrel has kept our garden green. we hate to waste food, so we put all our kitchen scraps in the compost pile.

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.