What social challenges are posed by a pyramid-shaped versus a "top-heavy" age structure diagram?
What will be an ideal response?
Growing populations have a pyramid-shaped age structure diagram. These populations face problems associated with depletion of resources such as fertile agricultural and grazing land, clean water, and raw material and energy stores. They face the threat of war as people fight over limited resources. Growing populations also face issues of dealing with increased pollution and waste. Top-heavy age structure diagrams reflect an aging population. Aging populations face the challenges of caring for their elderly. Social programs such as health care and Social Security may become stressed to the limit as there are fewer young workers to support those who are beyond their most productive years. Economic growth may be compromised, and there might be a weaker military.
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Answer the following statement true (T) or false (F)
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a. Hazard b. Exposure c. Contaminant d. Dangerous good
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A. 30 B. 50 C. 65 D. 20
In a sandbox with a crankable division, which of the following may be illustrated?
A) Normal faults fold in the area under compression and reverse faults form where the sand is pressed together. B) Normal faults fold in the area under tension and reverse faults form where the sand is given more space. C) Normal faults fold in the area under compression and reverse faults form where the sand is given more space. D) Normal faults fold in the area under tension and reverse faults form where the sand is pressed together.