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My essays:
- At the end of the Triassic period 200 million years ago there was a mass extinction event that caused the extinction of more than half of all living species 76
- Hail pieces of ice that form and fall from clouds instead of snow or rain has always been a problem for farmers in some areas of the United States 76
- Starting in the 1960s and continuing until the 1980s sailors in Russian submarines patrolling the North Atlantic and Arctic Ocean would occasionally hear strange sounds 83
- For the successful development of a country it is more important for a government to spend money on the education of very young children five to ten years old than to spend money on universities 60