I think it's recreational activities, method of transportation, and choice of occupation. So all of the above. Why? So lets start with recreational activities. Earth's physical form depends of if people want to go fishing, hiking, hiking, etc. Method of transportation. We need to have smooth ground to bike or drive on. A highway isn't going to be in the middle of the mountain. We need to have a good solid surface. Choice of occupation. Earth has a physical feature of like I said, mountains, plains, oceans, etc. We want to live in a place that has good resources, and good weather. All of these things depend on physical features of Earth.