A person can identify the amount of sleep he or she requires by waking up naturally.
The amount of sleep needed varies from person to person
Explanation:
In the paragraph, the lines "Everyone needs different amounts of sleep; the number of hours varies from person to person" and "Let yourself wake up naturally without an alarm, and then record the number of hours it took for you to wake up on your own. Once you have identified the amount of sleep you need, schedule your bedtime according to your required amount of sleep." indicate that these two are right.
Answer: Examining images in texts can help give you a visual understanding of an aspect within the text, or also provide further information to the reader.
D. State boards of education are those who determine the content of textbooks. Obviously, students and students' parents have nothing to do with this decision. Ultimately, teachers don't either - they are there just to teach the material found in the textbooks.
