Answer:
The available evidence suggests that immigration leads to more innovation, a better educated workforce, greater occupational specialization, better matching of skills with jobs, and higher overall economic productivity. Immigration also has a net positive effect on combined federal, state, and local budgets.
The system of government that the Puritans used was a theocracy.
Eastern Bloc try this for the answer
Answer:
(i) Cost of operating airlines is very high and so freight cost is very high as compared to sea transport.
(ii) It is difficult to carry bulky, awkwardly shaped goods.
(iii) Very risky in case of accident.
(iv) It is controlled by climatic conditions; thus bad weather leads to uncertainty in its time table.