Here's why:
* Universal Force: Gravity is a fundamental force of nature that attracts any two objects with mass.
* Earth's Pull: The Earth has a large mass, so it exerts a strong gravitational pull on everything near it, including us. This is what keeps our feet on the ground and prevents us from floating away.
* Constant Force: Gravity is always present and acts on all objects constantly, whether they are moving or stationary.
While other forces like friction, air resistance, and electromagnetic forces can also act on objects, gravity is the one force that is always present and always acting on everything on Earth.
