TASK DEFINITION: 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.
PROBLEM: Question: The mars rover collected round clumps of crystals that, on earth, usually form in what? Answer: water

SOLUTION: The mars rover collected round clumps of crystals that, on earth, usually form in water.

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

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

PROBLEM: Question: Which of the following is true regarding the properties of an air mass? Answer: An air mass has similar temperature and moisture properties throughout it.

SOLUTION:
One of the properties of an air mass is that an air mass has similar temperature and moisture properties throughout it.