1 is physical. Physical weathering is caused by the effects of changing temperature on rocks, causing the rock to break apart. The process is sometimes assisted by water. There are two main types which are freeze thawing and exfoliation. Physical weathering usually occurs in places where there is little soil and few plants growing like mountains, hot deserts, or tundras(the cold tundras).
The geological terrain of this region is primarily steppe, grasslands which have poor soil for agrarian (agricultural) lifestyles. Historically, steppe people have had to rob agricultural societies (i.e. Mongols in China) or just eat meat they hunt.
A man jogging in the park would go with Motion Energy
A fully charged camera battery would go with Electric Potential Energy
A stove burner that's turned on would go with Radiant Energy
An apple on a tree would go with Gravitational Potential Energy
Because it is in the "ring of fire"
The chunk represents similar fossils