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.

Question: Salts of weak acids or bases can affect the acidity or what of their aqueous solution? Answer: basicity
Salts of weak acids or bases can affect the acidity or basicity of their aqueous solutions.

Question: What type of diagnosis happens before a baby is born? Answer: prenatal
Prenatal diagnosis refers to the diagnosis of a disease or condition before the baby is born.

Question: What term is used to describe modern seed plants that produce seeds in cones? Answer: gymnosperms
Some modern seed plants are gymnosperms that produce seeds in cones.