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.
--------
Question: Question: Knees and elbows are examples of what part of the skeletal system? Answer: joints

Answer: Knees and elbows are examples of the joints of the skeletal system.


Question: Question: What is the most numerous species on the planet? Answer: bacteria

Answer: Bacteria are the most numerous species on the planet.


Question: Question: Because most gas particles in the atmosphere are concentrated close to earth's surface, air pressure is greatest where? Answer: at sea level

Answer:
Because most gas particles in the atmosphere are concentrated close to earth's surface, air pressure is greatest at sea level.