Earth's gravity is the force that pulls objects toward the center of the planet. It is what keeps us grounded and allows us to walk, run, and jump. The strength of this gravitational pull depends on the mass of the Earth and the distance from its center. This force is essential for many natural processes, such as keeping the atmosphere in place and allowing water to flow in rivers and oceans. Without Earth's gravity, life as we know it would not exist, as it helps maintain the conditions necessary for living organisms, including humans, animals, and plants.