The answer should be B Convection
D. Decrease in the amount of carbon dioxide in the air
Explanation:
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40 individuals emigrate, 0 individuals die, 10 individuals are born, 28 individuals immigrate would result in decrease in population showing negative population growth.
Explanation:
Negtaive population growth is a term used when individuals leaving the population is more than new individuals in the population.
Individuals would leave the population by two means:
either they die or emigrate from other places to join in.
The following scenario will be analysed by the formula provided to know the negative growth in population:
population growth = (birth rate + immigration) - (death rate + emigration)
putting the values in the equation:
first case:
immigrated individual = 14
emigrants = 0
new born = 14
died = 14
population growth = (14+14)-(14-0)= 14
second case:
immigrants = 28
emigrants = 40
new born = 10
died = 0
population growth= (10+28)-(0+40)= - 2
third case:
immigrants = 0
emigrants = 12
new born = 17
died = 5
population growth = (17 +0)-(5+12) = 0
fourth case:
immigrants = 0
emigrants = 19
new born = 25
died = 4
population growth:(25+0) - (19+4) =3
In second case the population growth has become negative. The value of population growth is -2.
