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.

Example Input: Question: A rounded hollow carved in the side of a mountain by a glacier is known as? Answer: a cirque
Example Output: A cirque is a rounded hollow carved in the side of a mountain by a glacier. The highest cliff of a cirque is called the headwall.

Example Input: Question: Which type of plankton make food via photosynthesis? Answer: phytoplankton
Example Output: Phytoplankton are "plant-like" plankton. Since they make food by photosynthesis, they live in the photic zone. Most are algae.

Example Input: Question: What is the advantage of selecting for certain genetic traits for crops? Answer: promotes productivity
Example Output:
Improving crops by selecting for certain genetic traits. The desired traits promote productivity. Recently, genetically engineered crops have been introduced.