Tajikistan is a country in Central Asia surrounded by Afghanistan, China, Kyrgyzstan and Uzbekistan. It does not share land boundary with India.
Answer:
C. A stratified sample.
Explanation:
Stratified sample: This is a type of sampling method used in the research method.
In stratified sampling, the experimenter or researcher divides a given population into different groups, named as strata. After diving the population into different groups, the researcher draws a probability sample from each group.
Advantage: Provides greater precision compared to a simple random sample of the same size.
Social change is the transformation of culture and social institutions over time. Its usually an alteration in the social order of a society. Social change include changes in nature, social institutions, social behaviors or social relations.
Material culture often changes faster than non-material culture because material culture tends to diffuse more quickly than non-material culture.
