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: All solutions contain at least how many substances? Answer: two
All solutions contain at least two substances.

Question: Another unit of energy, used widely in the health professions and everyday life, is _______? Answer: calorie ( cal )
Another unit of energy, used widely in the health professions and everyday life, is calorie ( cal )?

Question: Ultimately, most life forms get their energy from this? Answer: sun
Ultimately, most life forms get their energy from the sun.