Which of the Following Is True of the Availability and Consumption

question 3

Multiple Choice

Which of the following is true of the availability and consumption of water?

• A) Only one percent of the earth's fresh water is available for around seven billion people.
• B) The world's demand for water has decreased by 20 percent over the last half century.
• C) By 2030, total global water supply will meet about 90 percent of the demand.
• D) By 2050, about five percent of the population is projected to be living in areas with severe water shortages.
• E) The developing world has more access to fresh water than industrialized nations.

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Definitions:

Expiratory Reserve Volume (ERV)

The additional air that can be forcibly exhaled after the completion of a normal, passive exhalation.

Vital Capacity (VC)

The maximum amount of air a person can expel from the lungs after a maximum inhalation, a measure of lung function.

Inspiratory Reserve Volume (IRV)

The additional amount of air that can be inhaled after a normal inhalation, contributing to total lung capacity.

Expiratory Capacity (EC)

The maximum volume of air that can be exhaled from the lungs after a normal tidal volume exhalation.