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what are two ways that the size of a population can increase ? what are two ways that the size of a population can decrease

Respuesta :

Import of people, animals, or plants. Birth of new babies, animals, or plants.

Export. Death. 
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Answer:

For population increase two factors or ways are described which are birth or death, immigration and emigration.

The two ways a population can decrease is through mortality and emigration.

Explanation:

A population's increase is resolved  by  death, birth, immigration, and emigration. When a population's birthrate is higher than its death rate the population size, The population size is rises.

Also,The two factors responsible for the decrease in size of a population are emigration, which is the migration of an individual from a place. and mortality, which is the number of individual deaths in a population over a period of time.