Answer: what langue is this
Explanation:
Step migration is when people migrate over small distances multiple times to eventually get to their final destination.
Answer: Option(b) is correct
Explanation:
Positive economics is the field where economy is studied and analysed without predicting about its judgement in terms of goodness or badness. This theory defines about cause and effect that causes economic processes and behavior.
Other options are incorrect because operation of federal government and price level is not set by positive economics also does not describe value decisions and expectation about economy should operate. Thus, the correct option is option(b) .
Doctrine in the early Christian church helped unify early Christians by
helping them to understand the differences between Judaism and the
new form of Christianity (Roman Catholic)
Answer: The prospective approach.
Explanation: The prospective approach in a study looks out for product or result of the study. In this approach, a research/study is concluded based on the outcome. For example in the development of a drug, the study will involve testing different methods and concluding based on outcomes.