Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Q: Solid is characterized by molecules with minimal movement and strong forces between them.

A: Which state of matter is characterized by molecules with minimal movement and strong forces between them?
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Q: Energy do ecosystems absorb on the earth.

A: What do ecosystems absorb on the earth?
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Q: Electrical wires are usually covered with plastic or rubber to insulate the electrical wire.

A:
Which of the following best explains why electrical wires are usually covered with plastic or rubber?
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