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Who was a leading authority on continental drift in the early 1900s?

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Question generated: Which of the following allows a cell to become specialized?

Problem: Write a question you would see in a school textbook.

Answer: What is the role of chlorophyll in photosynthesis?

question: Write a question you would see in a school textbook. OPTIONS:
- Its radius is 765 km.
- Its density is about 1.3 kg/m3.
- Its period of rotation is about 4.5 Earth days.
- Its temperature is between -174C and -220C.
answer: Rhea is a moon of Saturn. Which of these facts about Rhea best indicates that it does not have a water cycle in which water changes state?

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In which structure is the Sun located?

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Jenny's class made an instrument to measure air pressure. The instrument is a