the roots help the tree from falling down
its base helps it from falling down
gravity, the one that keeps you falling down. or the electromagnetic force which keeps you from falling through the floor.
inertia
gravity keeps us down
the rear cup holder in my 1997 ford explorer keeps falling
4th Stage
'And the Rain keeps falling down' from the musical 'Elegies for Angels, Punks and Raging Queens.' It's a real beautiful song
What tissue keeps the organs from falling apart
False. A leaf floating down a tree is not an example of free falling because it is not accelerating due to gravity alone. The air resistance and other factors affect its descent, making it a non-example of free falling.
The moon orbits the earth, it could be said that it is falling down, but it keeps missing the earth. (Over simplified).
the gravity in earth
An apple falling from a tree is a specific instance of an object falling, while “a falling” from a tree is a grammatically incorrect phrase. It seems there might be a typo or error in the second part of your question.