The force that pulls everything toward the center of the Earth is gravity.

Here's a breakdown:

* Gravity: A fundamental force of nature that attracts any two objects with mass. The more massive the objects, the stronger the gravitational pull between them.

* Earth's Gravity: The Earth has a large mass, so it exerts a strong gravitational force on everything near it, including us, the atmosphere, and the moon. This is why we feel a downward pull on our bodies and why objects fall when dropped.

Let me know if you'd like to learn more about gravity!