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.

Input: Consider Input: Question: What is the term for the remains or traces of living organisms? Answer: fossils

Output: Fossils are the remains or traces of living organisms.

Input: Consider Input: Question: What two gases are the main components of air? Answer: nitrogen and oxygen

Output: A: Other examples of liquid mixtures include salt water and salad dressing. Air is a mixture of gases, mainly nitrogen and oxygen. The rock pictured in the Figure below is a solid mixture.

Input: Consider Input: Question: The first plants probably evolved from what? Answer: aquatic green algae
Output: The first plants probably evolved from aquatic green algae. They had male and female reproductive organs. However, they lacked true stems, roots, and leaves.