Earth revolves around sun.
There are 10 planets in our solar system.
Trees have life.
We can not breath in space.
They have special lungs.
Through their eyes.
They can't, they have to come to the surface.
They have gills.
Black blood cells
Red blood cells
White blood cells
A body at rest or constant moving state will remain so unless an outer force acts upon this.
Every action has equal and opposite reaction.
Gravity does not work when there is no air.
Here's an interesting quiz for you.