It would definitely be methane
Its is included there as it is located in the southeast region
Experts point to the impact of certain physical features, such as landforms, climates, and natural vegetation. ... If you live in the mountains, you're likely to develop a particular culture that adapts to life at a high altitude.
Gravity causes mass movement. Types of mass movement: landslides, mudslides, slump, and creep. The most destructive kind of mass movement is a landslide, which occurs when rock and soil slide quickly down a steep slope.