SCIENCE
ENVIRONMENTAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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increase in emigration
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increase in immigration
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increase in birth rates
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increase in life expectancy
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Detailed explanation-1: -Factors that cause a population to decrease in size include mortality and emigration.
Detailed explanation-2: -These density-independent factors include food or nutrient limitation, pollutants in the environment, and climate extremes, including seasonal cycles such as monsoons. In addition, catastrophic factors can also impact population growth, such as fires and hurricanes.
Detailed explanation-3: -Control in birth rate is not responsible for the population growth in India.
Detailed explanation-4: -With increasing migration, the population distribution between locations changes, including the critical behavior of extinction of population for some locations for a specific set of the rules. Then, the deserted location may become populated again if the migration is still increasing as result of a pressure to move.