EVERYDAY SCIENCE

Detailed explanation-1: -The number of individuals living within that specific location determines the population density, or the number of individuals divided by the size of the area. Population density can be used to describe the location, growth, and migration of many organisms.

Detailed explanation-2: -Population density is the average number of individuals in a population per unit of area or volume. For example, a population of 100 insects that live in an area of 100 squar e meter s has a density of 1 insect per square meter.

Detailed explanation-3: -Population size is the number of individuals in a population. For example, a population of insects might consist of 100 individual insects or many more. Population size influences the chances of a species surviving or going extinct. Generally, very small populations are at the greatest risk of extinction.

Detailed explanation-4: -Population density is the number of people per unit of area, usually transcribed as “per square kilometer” or square mile, and which may include or exclude, for example, areas of water or glaciers.

Detailed explanation-5: -Population density is midyear population divided by land area in square kilometers. This ratio can be calculated for any territorial unit for any point in time, depending on the source of the population data.