In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

Input: Consider Input: Question: Secondary pollutants form from chemical reactions that occur when pollution is exposed to what? Answer: sunlight

Output: Secondary pollutants form from chemical reactions that occur when pollution is exposed to sunlight.


Input: Consider Input: Question: What process is most responsible for the extinction of most species of plants and animals that have lived on Earth? Answer: environmental changes

Output: Environmental changes is most responsible for the extinction of most species of plants and animals that have lived on earth.


Input: Consider Input: Question: Atoms that have gained electrons and become negatively charged are called what? Answer: negative ions


Output: Atoms that have gained electrons and become negatively charged are called negative ions.