Edited Shape and structure: circumference
![](http://178.128.105.246/content-http-upload.wikimedia.org/wikipedia/commons/thumb/7/78/The_Blue_Marble.jpg/220px-The_Blue_Marble.jpg)
- Tectonic plates: plate tectonics (just the first mention)
![](http://178.128.105.246/content-http-upload.wikimedia.org/wikipedia/commons/thumb/3/3b/Tectonic_plates_%28empty%29.svg/220px-Tectonic_plates_%28empty%29.svg.png)
- Surface: urbanization
- Atmosphere: methane
![](http://178.128.105.246/content-http-upload.wikimedia.org/wikipedia/commons/thumb/b/be/Top_of_Atmosphere.jpg/220px-Top_of_Atmosphere.jpg)
- Weather, climate, and water cycle: convection
![](http://178.128.105.246/content-http-upload.wikimedia.org/wikipedia/commons/thumb/7/7c/HydrologicalCycle1.png/220px-HydrologicalCycle1.png)
- Orbit and rotation: Orion Arm
![](http://178.128.105.246/content-http-upload.wikimedia.org/wikipedia/commons/thumb/8/8b/North_season.jpg/220px-North_season.jpg)
Edited Shape and structure: circumference