Question

what is population change?​

Answer 1

Answer:

Population change is simply the change in the number of people in a specified area during a specific time period. Demographics is the study of population statistics, their variation and its causes. These statistics include birth rates, death rates, migration rates and sex ratios.

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Answer 2

Answer:

Pollution is the introduction of contaminants into the natural environment that cause adverse change.Pollution can take the form of chemical substances or energy, such as noise, heat, or light. Pollutants, the components of pollution, can be either foreign substances/energies or naturally occurring contaminants.