Give differences : Immigration and Emigration

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Question

Immigration
			Emigration
		
		
			 $(1)$ Inward movement into a local population.
			 $(1)$ Outward movement from local po

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Vedclass · Answer

Immigration
			Emigration
		
		
			 $(1)$ Inward movement into a local population.
			 $(1)$ Outward movement from local population.
		
		
			 $(2)$ Increases population size and so gene pool.
			 $(2)$ Decreases population size and so gene pool.
		
		
			 $(3)$ For better condition.
			 $(3)$ To defend from unfavourable conditions, like scarcity of food. Shelter or mate; natural calamaties like draught, floods etc.

$Country$	$Birth\, rate$ $/1000$	$Death$ $/1000$
$M$	$15$	$5$
$N$	$25$	$10$
$O$	$35$	$18$
$P$	$48$	$41$

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$Country$ $Birth\, rate$ $/1000$ $Death$ $/1000$

$M$ $15$ $5$

$N$ $25$ $10$

$O$ $35$ $18$

$P$ $48$ $41$

Immigration	Emigration
$(1)$ Inward movement into a local population.	$(1)$ Outward movement from local population.
$(2)$ Increases population size and so gene pool.	$(2)$ Decreases population size and so gene pool.
$(3)$ For better condition.	$(3)$ To defend from unfavourable conditions, like scarcity of food. Shelter or mate; natural calamaties like draught, floods etc.