Answers:
Question 12: Establishment of oyster refuge areas is similar to the practice of preserving deepwater regions for oyster growth.
This choice correctly parallels the historical practice of allowing oysters to grow larger in undisturbed deepwater, with contemporary efforts to create refuge areas for oysters.
Question 13: Temperate climate
A temperate climate is not a common feature of densely populated regions, as regions with extreme climates (tropical, arid, etc.) can also be densely populated depending on agriculture, resources, and other factors.
Question 14: The Medical Revolution
The Medical Revolution, which brought advances in healthcare and sanitation, was a significant event that spurred rapid population growth as mortality rates decreased.
Question 15: Very low or negative NIR
The balanced age distribution, with a taper at older ages, indicates that Denmark has a very low or negative natural increase rate (NIR), suggesting an aging population and low birth rates.
Question 16: Cancer is less common in populations with shorter life expectancies.
This statement is NOT a way in which population density and distribution affect health, as cancer rates can vary and are generally not solely determined by life expectancy or population distributions.
Question 17: Global population growth triples within 100 years from now, far exceeding the expected food supply.
This choice best expresses the projected relationship indicated in the graph, where population growth significantly outpaces resource growth.