I believe the answer is tribunal
Answer:
(Mission):a group of persons sent by a church to carry on religious work, especially evangelization in foreign lands, and often to establish schools, hospitals, etc. an establishment of missionaries in a foreign land; a missionary church or station.
Secede: withdraw formally from membership of a federal union, an alliance, or a political or religious organization
Reservation: An Indian reservation is a legal designation for an area of land managed by a federally recognized Indian tribe under the U.S. Bureau of Indian Affairs rather than the state governments of the United States in which they are physically located.
Explanation:
The greatest weakness is disintegration caused by early rains previously new development can help stay the dirt in more bone-dry atmospheres sandier soils. The better points of interest are advanced soil supplements as a side-effect of the consumer and evacuating high centralization of harming plants in the Ecosystem.
D is the anwser hope this helps!