Which of these activities loses water in the body

- Absorption from the digestive system
- Through breathing
- Distribution by the cardiovascular system
- Cold day
- Through the skin

BQ: True or false- The main factors influencing blood pressure are cardiac output, peripheral resistance and blood volume.
^^ I think it's "True" - but, I would just like to confirm this.

Thanks.

Will give best answer.

Both breathing and perspiration cause loss of water, however they just said "through the skin" which isn't exactly an activity... pedantic questions, ugh.
and True.

through breathing

Through breathing, I'd say through the skin in the process of sweating.