___Prevention of infectious diseases, improvednutrition and access to prenatal carecan reduce the highinfantmortality rates indeveloping countries

____ When population is aging, its crude death rate is declining over time.

____Natural increaseis higher in populations completing the4th stage ofdemographic transition than in countries in the 3rd stage of demographic transition.

____ When age adjusted rates for two populations are the same, then age specific rates are usually similar.

____ Crude death rates should be used to compare mortality in different countries, because they depend on real age distribution of each population.