The word 'its' refers to the nature of an object. Usage depends on the subject noun and the narrative text. There are many possible usages of this word, but please note that 'its' and the homonym 'it's' do not mean the same thing.
Examples of Its:
The leopard's spots were such good camouflage you couldn't even keep track of its movements.|
Its size was the main visual shock. It was the biggest carrot I've ever seen.
The old car did its best, but twice across the Rockies was obviously enough.
At its greatest extent, the Mongol Empire stretched from Burma to southern Russia.