Given a scientific passage and an answer, generate a question for the given answer.
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Question: Passage: Improving crops by selecting for certain genetic traits. The desired traits promote productivity. Recently, genetically engineered crops have been introduced. Answer: promotes productivity

Answer: What is the advantage of selecting for certain genetic traits for crops?

Question: Passage: The Moon has no atmosphere. With no atmosphere, the Moon is not protected from extreme temperatures. The average surface temperature during the day is approximately 107C (225F). Daytime temperatures can reach as high as 123C (253F). At night, the average temperature drops to -153C (-243F). The lowest temperatures measured are as low as -233C (-397F). Answer: atmosphere

Answer: What does the moon not have to protect it from extreme temperatures?

Question: Passage: Cytokinins Promote cell division; prevent senescence. Answer: senescence

Answer:
Cytokinins promote cell division and prevent what?