Question

Nonliving things grow by?

Answer 1

non livings :
growth is the property related to living things,, non living can not grow ..
it is the property that makes a difference between living and non living...

Answer 2

They grow by accumulating more the same material they are made out of. They don't 'grow' per say but they can get larger. Like a snowball. It gets bigger and bigger as you roll it in the snow. Hope i helped