(1) According to the graphic information, it can be determined that this area is the East African Plateau, the fault zone of the Great Rift Valley in East Africa ("scar of the earth") is the growth boundary of the plate, and the crust at the junction of the plate is active, so there are many volcanoes.

(2) The region spans the northern and southern hemispheres and has a large savanna climate, while the dry and wet seasons of savanna climate in the northern and southern hemispheres are just the opposite, and a large number of wild animals can obtain adequate water grass protection through migration.

(3) Country A is a developing country, and the coffee in this tropical region is of good quality and high yield; The international market demand is large; The labor there is abundant and cheap; Close to the coast, convenient shipping; Policy support and other factors.

(4) From the climate point of view, this area belongs to the tropical grassland climate, with long dry season and abundant solar energy resources; Solar energy belongs to renewable and clean energy; Lower land prices in developing countries can reduce costs; However, backward technology, lack of funds and low market demand are unfavorable factors.

So the answer is: (1) is mainly distributed on both sides of the fault zone.

Reason: Located at the plate boundary (extensional fault), the crustal movement is active and there are many volcanoes.

(2) The grassland area is vast, the wild animals are abundant and the population is huge; The wet and dry seasons are distinct, and the seasons of aquatic plants are very different; It is distributed across the northern and southern hemispheres, and the dry and wet seasons in the northern and southern hemispheres are opposite. Animals migrating in the two hemispheres can get adequate protection from aquatic plants.

(3) The coffee is of high yield and good quality; There are abundant cheap labor; There is a great demand for coffee in the international market; Linhai, convenient shipping; National policy support.

(4) favorable: abundant solar energy; Solar energy is clean and renewable energy; Land price is low.

Disadvantages: insufficient funds: backward technology; Less market demand; Solar power generation has a wide coverage.