Answer:
The high islands of the Pacific were formed by seismic activity whereas the low islands of the Pacific were formed by coral growth. Continental islands and oceanic islands were formed by volcanic activity.
High islands often have fertile soils and lush rainforests. In contrast, low islands are often less fertile than high islands. Some low islands lack freshwater sources.
Cultural diffusion is the spread of cultural beliefs and social activities from one group of people to another. Cultural diffusion happens through letters, books, and, in modern times, through electronic media.
The greatest stream erosion occurs at the point where the greatest force of the river hits against the side of the bedrock before eroding. Streams on the earth's surface are eroded in three ways: Hydraulic action, abrasion, and solution. Dependent upon the makeup of the soil or surface upon which the force of the river hits, determines the movement of the river's path.