There are no following that were listed, but under assumption you can have:
1.) Not drinking water.
2.) Rationing it.
Comment down the answer list and I will comment back the answer thanks :D
Metal is only cold because of our bodies temperature, that’s what makes it seem cold when we hold it. But metal is normally warm
Answer:
I'm pretty sure the bottom one is faciliated diffusion. Try searching up your answer so sorry I couldn't help more, but I hope that does help you out a bit:)
The answer is 1 astronomical unit