I think its earth and the air i think its air because we only have a little bit of gravity that's how we throw our baskets in the air to celebrate and it's a force it forces us by staying on land that way to don't go up on the sky i also said earth too because earth continues moving in circles like earth is moving right now I meant that we can't feel it moving but it moves there is a water thing that gives us water its basically a planet that idk but it gives us water to provide water for us to drink and use it for lakes and rivers i hope that this helps
