GIVE ANSWERS - 한국어

바닥 and 땅 have almost similar meaning because they mean the ground. But peaple use these words depends on the situation. 바닥 means floor. So you can say "The floor(바닥) over there is dirty so please go and clean it up" and 땅 means territory or contrary concept of sky. For example, "China has big territory(땅) / Birds are flying in the sky but there is no one on the ground(땅)." I think maybe 땅 has much more large concepts.