Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

[EX Q]: Question: Which kind of flowers carry both male and female floral organs? Answer: perfect flowers
[EX A]: Figure 14.25 This image depicts the structure of a perfect and complete flower. Perfect flowers carry both male and female floral organs. (credit: modification of work by Mariana Ruiz Villareal).

[EX Q]: Question: What change the physical properties of solvents? Answer: solutes
[EX A]: Solutes change the physical properties of solvents. They lower the freezing point and raise the boiling point of solvents.

[EX Q]: Question: Large or small numbers are expressed in scientific notation, which use powers of this? Answer: 10
[EX A]:
Large or small numbers are expressed in scientific notation, which use powers of 10.