Suppose That, in a Given Region, 20% of Its Population

question 10

Multiple Choice

Suppose that, in a given region, 20% of its population is younger than 15 and 10% is older than 65 years of age. What would the dependency ratio be?

• A) 43
• B) 50
• C) 46
• D) None of these is correct.

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Definitions:

Harmful Bacteria

Bacteria that can cause disease or infection in humans, animals, or plants, often spreading through water, food, or contact.

Surface Water

Water that collects on the surface of the earth, including rivers, lakes, and oceans, which plays a crucial role in the water cycle and ecosystem health.

Sand Filters

A water filtration system that uses sand as a natural filtering medium to remove impurities and particles from water, commonly used in water treatment processes.

Activated Charcoal

A form of carbon processed to have small, low-volume pores that increase the surface area available for adsorption or chemical reactions, often used in filtering and detoxifying.