Snakes often stick their tongues out, not to use it to absorb moisture, or to feel fresh air, or a habitual action, but to use it to help smell and find food and determine the environment. Why do snakes often stick out their tongues? ? ['Use your tongue to help smell and find food and determine your environment.', 'Absorb moisture.', 'want to feel the fresh air.', 'is a habitual action.']