I am known as the Red Planet. What am I?

I follow you in sunlight, vanish in darkness, and copy your shape without touching you. What am I?

I follow you in daylight but disappear in the dark. What am I?

What is full of holes but still holds water?

I can pull metal toward me, but I have no hands. What am I?

I can be a solid, liquid or gas, but I am always the same thing. What am I?

What bell can wake you up but has no metal?

What button makes things stop instead of start?

I am in the air, invisible, and your body needs me every moment. What am I?