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Why have infant death rates decreased in the past 50 years?
Infant death rates have decreased in the past 50 years due to unhealthy economy, lack of food resources and disease .
How did death rates change after Pasteur discovered the chickenpox vaccine?
Pasteur did not discover chickenpox vaccine. However, death rates due to chickenpox have decreased over 90% in the US since chickenpox vaccine was approved.
In the past 100 years how much have the population increased?
The population has increased because of a few reasons. One reason is because the death rates has decreased a lot because of the medicines ,they have gotten a lot better from our newer knowledge. The birth rates are increasing a little because of the unawareness of the people, and the parents consider the children growing up and owning there businesses and making themwealthier, since the death rates have decreased there is more births than deaths, so the population gets higher.
What affects death rates?
What affects death rates???Quite a few things can affect death rates a few of them are:warfaminedroughtdiseaseThese are just a few of the things which affect death rates
How birth rates and death rates influence the size of a population?
If birth rates exceed death rates, the population increases proportionally. If death rates exceed birth rates, the population decreases.
Why death rates tend to fall before birth rates?
Birth rates rise as death rates fall?
What are two ways that the size of population can increase?
Increased Birth Rate or decreased Death Rate
What is the difference between mortality rates and death rates?
mortality rate - Death Rate
What did reaganomics lead to?
Reaganomics led to decreased inflation, decreased interest rates, and increased budget deficits.
During inflation period tax rates should be increased or decreased?
increased
What are Canada's birth and death rates?
Canada's birth/death rates per 1000 are: birth: 10.12 death: 10.8
What is the tendency is a population to shift from high birth rates and death rates to low birth and death rates called?
Demographic transition
