I just took a test in school today. What question was I asked?

Question I was asked: Until recently the Grand Canyon was thought to be about 5-6 million years old. Recently a scientist gathered data and wrote a paper for a scientific journal that indicated the canyon is about 17 million years old. Before this new information about the canyon is accepted, which of these needs to occur?

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The atoms that make up oxygen gas

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Question generated: Where do many of the basic life functions take place in organisms?

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

Answer: What would a warm air mass over the ocean most likely cause?

question: Write a question you would see in a school textbook. OPTIONS:
- Earth rotates once each day on its axis.
- Earth revolves around the Sun each year.
- The Sun is closest to Earth during the day.
- The tilt of Earth changes throughout the year.
answer: Which statement best explains Earth's day and night cycle?

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Question generated:
Natural selection cannot occur without