<span>Supposedly at Jamestown but there are lots of theories about Norsemen (Vikings) travelling there in the 9th and 10th centuries and establishing settlements in Nova Scotia
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<span>Radiometric dating such as carbon 14, Uranium 238, 235, and 234, Thorium 232, Rubidium 87, and Potassium 40. This is not an exhaustive list. Each of these different isotopes have a different half life, so they can be used to measure different ages, from million to billions of years.</span>
The Tang and Song dynasties are seen as two dynasties that brought progress, peace, and development of China and the people in China. They are successive dynasties, with Tang being the predecessor of the Song dynasty.
The Tang Dynasty managed to:
- expand the territory of China in Central Asia, Manchuria, and Korea
- reunited the country and brought peace and prosperity
- improved the infrastructure
- implemented examinations for higher positions in order to have only high quality people in the most important positions
The Song Dynasty managed to:
- continue what the Tang Dynasty was doing
- improved the relations and trade with other countries, significantly expanding both
The correct answer is - 251 to 500.
The Ganges River basin is one of the most densely populated areas in the world. The average population density of this area is 390 people per square kilometer. The reason for the high density of the population in this area is that the Ganges River basin has been providing good living conditions for the people for thousands of years. The area has the Ganges River, as well as numerous other rivers, very fertile soil, nice climate, thus it has always been a very popular place for living in the Indian subcontinent. As it has been a densely populated area ever since people started living there, the trend continued over the centuries, and the population was constantly increasing. Numerous large cities have been built, and the region has been developing intensely in the past several decades, resulting in even more people being attracted to this area, thus contributing further to the high population density.
