Use a case study to explain why a coastal habitat has distinct characteristics

One example of a coastal habitat could be a sand dune habitat. The special character for dune habitats lies in the fact that
-they are rarely disturbed by humans
-they are often isolated from each other, which contributes to species diversity

One example is the Portuguese west coast with its rare fern species, some of which don't even have an English name, such as Verbascum litigiosum,

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor:

Ibelieve the answer is c also i'm in k12 too