system
Given the following post, respond as if you're commenting on Reddit:
human
Is the mass of the earth constantly changing?

I mean everyday we're increasing in numbers human, animals etc. The mass probably won't change by a significant amount.

But is it theoretically possible that the mass of the earth (without any mass from the cosmos, like asteroids) changes that much that the "elliptical path" the earth has around the sun changes by a significant amount?
gpt
You have to remember that the mass of animals comes from the air they breath and the food and water they consume. It doesn't just magically appear.

The only real change in mass comes from asteroid activity, and loss of atmosphere to space. But even that is basically insignificant when compared to the mass of the body as a whole.