A Beach by Any Other Name Answers

A primary coast is one that is shaped by processes such as glacial erosion where secondary coast are formed from marine processes. In primary coast there are many processes such as glacial erosion, volcanic coast, and diastrophic coast. Secondary coast consist of marine-deposition, coast built by organisms, and coast eroded by waves.A majority of the western coast is primary. This is due to the fact that it is in close proximity to a fault line.Most of the east coast is a secondary coast. As the depth gets deeper the salinity got higher for all three. There are many factors that could influence the circulation of water such as currents and the tides. There is both fresh water and salt water at certain times because an estuary acts as a filter between the ocean and the river. Fish needed to be able to take in both salt water and fresh water while living in an estuary. Estuaries allow for recreational activities, as well as scientific research. They are big with tourist and people who enjoy fishing. Estuaries are also good ecologically because they act as a filter between the ocean and the river. Without the two would mix together and it would be harmful to the sea life. Estuaries seem to be plagued by humans who over build on them and destroy them. Pollution from humans can effect estuaries, as well as fertilizer run off from agricultural areas. It also seems that there is major over population on estuaries from people who are over building.Also the development of housing hurts the natural ecosystems of the estuaries. My research question is, How are different coast formed? I think by doing this activity i have answered this question. My hypothesis was if there are different types of coast, then there are different processes that formed those coast. My hypothesis was supported by my data. My two new questions are, What can we do to protect estuaries? and How can we safely build on an estuary. This activity is very important because it showed how the coast are formed and I learned a lot about my natural surroundings.