Random question?

When a balloon is filled with air and suddenly released, it will fly around the room as the air escapes. If compared to space transportation, the escaping air is most similar to what subsystem of a spacecraft?

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Question generated: When oxygen combines with hydrogen, which substance is formed?

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

Answer: A balloon filled with helium gas is set free and starts to move upward. Which of the following best explains why the helium balloon moves upward?

question: Write a question you would see in a school textbook. OPTIONS:
- convert energy
- increase speed
- provide protection
- allow for reproduction
answer: What is the most likely function of a turtle's hard shell?

An example of a grad-school level question?
Which system of the human body provides protection to most of the major organs?

Random question?
Which of these animals has a young form that looks the most like the adult form?