I do believe that the answer to your question is letter B “silt no longer settles on land and enriches the soil
Christian communities developed a formal church structure within its clergy. At first the clergy included priests and bishops, the highest ranking church officials. As the church expanded, archbishops were appointed to oversee the bishops.
Answer:
Two European empires was dismantled.
Explanation:
Most Australians follow Christianity with about 1/4 of the population Catholics.