What is the function of the subheadings in “All About Sleep”? All About Sleep They answer the question “Why Is Sleep Important?” and are followed by text that provides further details. 1. They answer the question “Why Is Sleep Important?” and are followed by text that provides further details.

2. They answer the question “What Makes You Sleep?” and explain the different steps of the sleep cycle.

3. They provide definitions of technical terms related to the study of sleep.

4. They provide links to information about sleep-related topics and expand on details in the text.

hello!

i don't seem to see any options! could you tell me what they are? !

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.

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)