What are some possible effects of the migrations on the changes in the structure of population within a country (age, gender, economic, education, religious, national, etc.) and the future of the population growth in the country?

Q1: which of the following usually occurs after a natural disaster? the death rate falls. the death rate rises. the birth rate falls. the birth rate rises. the rate of natural increase rises. q2: which of the following countries is most likely to import more food than it exports? united states india australia brazil japan q3: in which of the following countries are farmers most likely to farm the land without the of machinery? i. a country with a low physiological density and low agricultural density ii. a country with a low physiological density and high agricultural density iii. a country with a high physiological density and low agricultural density iv. a country with a high physiological density and high agricultural density iv only i and iii iii and iv i, ii, and iii ii, iii, and iv