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Factors Affecting Population Density

Pick out the ...

Question

Pick out the factors that affect the population density.

A

Birth rate

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B

Immigration

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C

Emigration

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D

Death rate

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Solution

The correct options are
A
Birth rate

B
Immigration

C
Emigration

D
Death rate

The term population is used for a group of individuals belonging to the same species that live in the same region at the same time. Population density is a measurement of population per unit area or unit volume. The factors that affect this population density are birth rate, death rate, dispersal(Immigration and Emigration).

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Q. The factors that affect population density are birth rate, death rate and dispersal.

Pick out the factors that affect the population density

Q. The population of a town is

50, 000

. If the annual emigration rate is

6 %

and the annual immigration rate is

4 %

, calculate the population after two years.

Q. A country's birth rate is the number of births per year per

1000

people in the country, and a country's death rate is the number of deaths per year per

1000

people. Immigration refers to the number of people who move into a country each year, and emigration refers to the number of people who move out of the country each year. A country's population growth is determined by these four variables. Table

1

gives birth, death, immigration and emigration rates in four countries and lines

1 - 4

1

model in the population for the four countries shown over time.

	Birth	Death	Immigration	Emigration
East Zealand	$20$	$x$	$1000$	$1000$
West Zealand	$21$	$21$	$12100$	$y$
South Zealand	$36$	$24$	$z$	$500$
North Zealand	$13$	$13$	$82000$	$9600$

Name the country whose population is represented by line

1

.

When the number of immigration and births is more than emigration and deaths, the growth curve of the population will show

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Factors Affecting Population Density

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