Answer:
d. the accumulation of greenhouse gases in the earth's atmosphere.
Explanation:
Answer: 'A' is the response.
Explanation: The diagram A appears to show a location where magma is rising as a result of an upwelling convection current in the magma, which could cause the sea bottom to spread. The spreading of the crust is indicated by the arrows. This will become a focal point for the spreading marine floor.
To learn more about oceanic spreading center refer:
brainly.com/question/13892552
#SPJ2
Early society Japan was isolated due to geographic isolation from the rest of the world, which basically means that due to natural barriers between other civilizations. (in this case, natural barrier of oceans since Japan is a chain of islands or an archipelago)
Africa major areas are almost completely void of human life . some areas is the desert with forest