Random question?

Which is the thickest layer of Earth?

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Question generated: Environmental organizations have asked businesses to take action to reduce waste. Which of the following changes could a business make in order to become more "environmentally friendly"?

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

Answer: Earth is about 81 times more massive than the Moon. How will the mass and weight of a rocket on the Moon compare to its mass and weight on Earth?

question: Write a question you would see in a school textbook. OPTIONS:
- to overcome Earth's gravitational force
- to protect equipment from radiation
- to break through the sound barrier
- to avoid Earth's magnetic field
answer: Why do satellites and spacecraft launched from Earth need to reach a specific speed to escape Earth's surface?

An example of a grad-school level question?
Which part of an atom is involved in chemical reactions?

Random question?
A scientist is comparing two body cells of a multicellular organism. Which of the following is most likely identical?