Question

which is a possible consequence of decreasing air quality resulting from global warming?
○ drying out of fertile lands
○ flooding of low - lying coastal areas
○ melting of glaciers and polar ice caps
○ decrease in population due to health threats

Explanation:

To determine the possible consequence of decreasing air quality from global warming, we analyze each option:

• Drying out of fertile lands: Related to changes in precipitation patterns from climate change (global warming), but more directly linked to temperature/rainfall shifts, not air quality decline.
• Flooding of low - lying coastal areas: Caused by sea - level rise from melting ice (due to global warming's temperature increase), not directly from air quality decrease.
• Melting of glaciers and polar ice caps: Result of rising global temperatures (global warming), not a direct consequence of air quality reduction.
• Decrease in population due to health threats: Poor air quality (with pollutants, allergens, or disease - spreading agents) can cause respiratory/other health issues, increasing mortality or reducing population growth. This is a direct consequence of degraded air quality from global warming.

Answer:

D. decrease in population due to health threats