Please briefly describe the respective characteristics of nomadic, agricultural and maritime civilizations!

Nomadic people live by water and grass, basically rely on the natural environment to survive, and do not improve nature much. Wherever the water and grass are fertile, they are nomadic. Most nomads are brave and tough.

Agricultural civilization tends to be stable, because arable land needs to be carefully cultivated, and the land cannot be moved. Therefore, the peoples engaged in agriculture were conservative and not good at taking risks.

Marine civilization is rich in adventure and pioneering spirit, the vast ocean, the destination is on the other side of the distant shore. Ocean civilization and economic trade go hand in hand, such as democracy, industrial civilization, today's society are directly related to it!