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: Question: What is an odorless white solid that is harmless unless consumed in large quantities? Answer: sodium chloride

Answer: A: Sodium chloride is an odorless white solid that is harmless unless consumed in large quantities. In fact, it is a necessary component of the human diet.

Question: Question: What are the light highlands of the moon called? Answer: terrae

Answer: The lunar surface has dark basalt maria. The light highlands are called terrae.

Question: Question: Amylase and pepsin are examples of enzymes needed for what process? Answer: digestion

Answer:
More than 1000 different enzymes are necessary for human life. Many enzymes are needed for the digestion of food. Two examples are amylase and pepsin. Both are described in the Figure below .