Answer:
The tread on the road declined sharply till in the 13th century,when the conquests of the Mongols ushered in an era of frequent and extended contacts between East and West...
With less cost,harassment and danger,many goods and materials that the Silk Road could not transfer were conveyed through the sea route.
Answer: it result in high dependency ratio.
Explanation:
Ageing population is a kind of population with a high number of old people than young people in the country. it can be a problem because it can lead to a high dependency ratio in which the number of the working population will be lower than the number of people who depend on the working population. when a country has a lesser number of people that are working it has a greater economic consequences for such a country such as decrease in production, reduction in the number of tax payers.
Answer: Symbols
Explanation:
Symbols refers to signs or image that have a meaning or passing an information.
Answer:
feel more effective.
Explanation:
In general sense, small groups are defined as group of people mostly three or a few more people, but not in large numbers (above twenty) who are together to achieve a common goal. For example, a group of talented guys, that forms a musical group for the purpose of realizing their musical or artistical dreams.
Some of the characteristics of small groups includes:
1. Shared identity
2. Results oriented approach
3. Interdependece
4. Competent team members
Hence, in comparison with the large groups, people in small groups tend to identify themselves with the core structures and goals of the group, there by less likely to take more than their equal share of available resources, which in turn makes them to FEEL MORE EFFECTIVE in general towards the success of the group.
Avery and his group used enzymes to degrade DNA, RNA and protein in 3S bacteria. DNA from those cells was then tested to see if it can convert 3R cells into 3S cells. It was observed that 3R cells were converted to 3S cells except when the DNA was destroyed. Thus, DNA was pin-pointed as the transforming agent.
