how does natality rate and mortality rate affects population growth

It is an important parameter indicating what percentage of children die out of new births. It is an indication of the quality and adequacy of health care provided to people. Generally, as the country develops, its infant mortality is likely to reduce. Infant mortality rateh..

Birth rate usually expressed as number of birth for every 1000 people ()..

. Sigmoid growth curve is formed of five phases. a) Lag phase b) Positive acceleration phase c) Logarithmic or exponential phase d) Negative acceleration phase e) Stationary phase. a) Lag phase - Period where individuals adapt to the new environment. b) Positive acceleration phase - Perio..

Population growth rate refers to net rate at which population is added annually to the population. Population growth rate = (B r + I r ) - (D r + E r ) where B r - Birth rate I r - Immigration r..

Natality rate is the rate at which new individuals are added to a particular population by reproduction (birth of young ones or hatching of eggs or germination of seeds/spores..

Also called as mortality rate, it is the rate at which people die. It is also expressed as number of deaths occurring for every 1000 people per year. It gives an idea of reduction in population due to death. It negatively contributes to growth ..

Population of a country should grow reasonably to match with growth in its gross domestic product to maintain the existing standard of living. Reducing growth or negative growth in population may be desirable if the standard of living should increas..

. However, rate of growth may not be the only yard stick to evaluate overpopulation. Total available population and density of population are important features to decide whether rate of increase in population really affects the ..

How Does Waste Affect the Environment? - Accumulation of wastes due to its improper disposal is a major problem in our country. Population in India has been growing at a rapid rate. With this increase, there has also been an increase in the amount o..