I think your question is bit irrelevant to ask here but still i am gonna answer...

Think of it this way - Android basically "borrows" Linux's core abilities instead of building everything from scratch. It's like Linux is the engine and foundation of a car, while Android is the body, interior, and all the fancy features you actually see and use.

The main things Android takes from Linux are:

The heavy lifting stuff like managing memory and processes Handling device hardware (cameras, bluetooth, etc.) Security features Power management But Google didn't just use Linux as-is - they added their own special sauce for mobile devices, like better battery management and memory handling.

So when someone says "Android is built on Linux kernel," they really mean Android is using Linux's battle-tested core system to handle all the complex, low-level stuff, while focusing on building the user-facing parts that make Android unique.