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: The sum of the kinetic and potential energies of a system’s atoms and molecules is called what? Answer: internal energy

A: The sum of the kinetic and potential energies of a system’s atoms and molecules is called internal energy.
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Q: Question: What is the most numerous species on the planet? Answer: bacteria

A: Bacteria are the most numerous species on the planet.
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Q: Question: Why does water infiltrate the ground? Answer: because soil and rocks are porous

A:
Because soil and rocks are porous does water infiltrate the ground.
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