In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Q: Question: In solids, particles can't overcome the force of attraction between them because they lack what? Answer: kinetic energy

A: In solids, particles can't overcome the force of attraction between them because they lack kinetic energy.
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Q: Question: What type of tissues are major barriers to the entry of pathogens into the body? Answer: mucosal

A: Mucosal tissues are major barriers to the entry of pathogens into the body.
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Q: Question: Which of newton's laws states that the quantity of angular momentum in a closed system is fixed? Answer: third conservation law

A:
Third conservation law of newton's laws states that the quantity of angular momentum in a closed system is fixed.
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