-Which of the Following Best Explains Why the Dependency Ratio

question 14

Multiple Choice

-Which of the following best explains why the dependency ratio in South Asia has been declining?

• A)The longer life expectancy has allowed people to work for more years,thus not being dependent on others for social services.
• B)The decreasing birth rate has resulted in fewer children dependent on social services.
• C)The life expectancy in South Asia has been declining because of natural disasters and diseases,so there are fewer elderly citizens to take care of.
• D)The increasing population in the region has resulted in more working-age people who depend on social services.

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Definitions:

Total Impedance

The collective resistance to current flow in an AC circuit, including the effects of both resistance and reactance.

Applied Voltage

The amount of voltage connected to a circuit or device.

Total Current

The sum of all currents flowing through all branches of a circuit.

Power Factor

The ratio of real power flowing to the load to the apparent power in the circuit, indicating the efficiency of power usage.