Why do leaves change color in autumn?

This basic biology question can help the recruiter assess your ability to explain biological phenomena in simple terms. You can answer by briefly explaining the process that leaves go through from spring to autumn. If you’re unsure of the process, you can use your critical-thinking and reasoning skills to give your best guess. These skills are valuable in most biology-related roles, so it’s helpful to show them in interviews.Example answer:“Leaves capture sunlight and transform it into food for plants. During spring and summer, they constantly produce food, but as fall approaches and the days get shorter, they produce less and less chlorophyll, which is the substance that plants use to make food. As they run out of chlorophyll, their color gradually turns yellow, orange and red, and they eventually fall off.”