Here's why:
* Gravity is a fundamental force of nature. It's an attractive force that exists between any two objects with mass.
* The Earth has a large mass. This means it exerts a strong gravitational pull on objects near its surface, including a ball.
* The ball has mass. This means it is also affected by gravity.
* The result is a force that pulls the ball towards the center of the Earth. This force is what we call gravity, and it causes the ball to fall down.
Let me know if you'd like to explore other related concepts like acceleration due to gravity or how gravity works on different objects!
