question: Write a question you would see in a school textbook.
answer: Two flowers are both roses. One rose is larger and has more fragrance than the other rose. What advantage will one of the roses most likely gain because of this difference?

question: Write a question you would see in a school textbook.
answer: Which of the following Earth layers has the greatest density?

question: Write a question you would see in a school textbook.
answer:
Using nonrenewable resources for energy produces waste products that can have long-term, negative effects on Earth's subsystems. Which energy source produces waste products that can have these effects for the longest amount of time?