How are the effects of gravity beneficial to human beings?

That's because gravity, acting on molecules of gas, hold them down at the Earth's surface. Without that, all gases would escape into space and we might find it a bit hard to breathe.

The effects of gravity are beneficial to human beings in several ways:

1. It keeps our bodies anchored to the Earth's surface, allowing us to move, walk, and perform various activities.
2. Gravity helps in maintaining the structure and density of our bones, which is crucial for skeletal health.
3. Gravity aids in blood circulation by facilitating the return of blood to the heart from the lower parts of the body.
4. It contributes to maintaining atmospheric pressure, which is essential for breathing and overall physiological functions.
5. Gravity influences plant growth by providing necessary resistance for roots to anchor and for stems to grow upward.