The correct answer is A - reduced the power of the Guptas.
Huns invaded among other things the empire where Guptas reigned. They were able to overthrow them for some time, however, they were eventually driven out.
In any case, this did reduce their power as it showed that they were not invincible and could be invaded and defeated by a foreign and conquering force such as the Huns.
B. Fulton's Steam Engine
Explanation:
I believe it is B because there were steamboats and steam powered trains as a result.
As they did not keep livestock, they did not appear to have any use for pasture
Answer:
Empirical evidence must be present in order to say that sociological findings are based on empirical research.
Explanation:
Empirical research draws from data collected in field work, through observation or experimentation, this data is called empirical evidence. In order to say that sociological findings are based on empirical research, the researcher had to collect and analize empirical evidence in the form of observation notes, interviews or surveys, among others.
Answer: Vygotsky's theory of cognitive development
Explanation: Vygotsky's Cognitive Development Theory is the theory that states about the constructive behavior of the children to obtain the cognitive factors. Instruction ,guidance and interaction on social base is considered as the feature of the theory which enhances the learning , solving problem and other skills.
The situation mentioned in the question describes about the Vygotsky's theory because Dr Smith believes in improving the knowledge through instruction in 9-year old .