Answer the following question given this paragraph: 

The skin has multiple roles in the body. Many of these roles are related to homeostasis. The skin’s main functions are preventing water loss from the body and serving as a barrier to the entry of microorganisms. In addition, melanin in the skin blocks UV light and protects deeper layers from its damaging effects.


Q: The skin plays an important role in preventing the escape of what commonly found liquid from the body?

 Choices:

- hormones

- stomach acid

- urine

- water

A:
water
