TASK DEFINITION: In this task, you are given a question and a corresponding answer. Your task is to generate a fact statement that is useful in answering the given question.
PROBLEM: Question: Humans contribute to environmental pollution? Answer: by leaving behind refuse on public beaches.

SOLUTION: pollution is when humans pollute the environment with pollutants

PROBLEM: Question: The face of the sphinx has changed from? Answer: wearing away.

SOLUTION: wind and rain cause erosion

PROBLEM: Question: A living thing will expire if access to this is removed for a time.? Answer: ability to experience respiration.

SOLUTION:
an animal requires air for survival