Yes its true light acts like both particle and a wave
Serfs paid the owner of the land (in the form of labor) to be able to live on the land and have protection, if the serf were to leave. It was usually an unspoken agreement that they serf would stay on the land. If you still need further information you might find some on http://www.thefinertimes.com/Middle-Ages/serfs-in-the-middle-ages.html
Answer:
the silk was a vest trade network connecting eurasia and north africa via land and sea routes. the silk road earned its name from chinese silk, a highly valued commodity that merchants transported along these trade networks.
Explanation:
additionally buddhism , zoroastrainism, manichaeism and nestroianism were all introduced to china and parts of india because of the silk roads influence
Answer: c) Substage 3: Secondary circular reactions
Explanation:
Piaget's theory posits that children go through four different stages of cognitive development. Their mental development includes language, morals, memory and the like.
The sensorimotor stage is the earliest in Piaget's theory of cognitive development and is described as a period of tremendous growth and change.
It is divided into substages, the third of which is called SECONDARY CIRCULAR REACTIONS where the child becomes more focused on the outside world and begins to repeat activities to derive joy from them such as picking up a toy to put in their mouth.
The answer is the class system of stratification. To simplify, American Idol winner Carrie Underwood signifies the idea of a class system of stratification because as the daughter of a sawmill worker, she experienced intergenerational mobility. In addition, Intergenerational mobility refers to variations in social status among different generations contained by the same family. The class stratification is a custom of social stratification in which a civilization inclines to divide into distinct classes whose members have dissimilar admission to resources and power. An economic and cultural gap typically happens among dissimilar classes.
