Question

what is the significance of identifying storm drains? reducing pollution in urban areas to destroy the drainage system increasing water supply

Explanation:

Storm drains carry runoff. Identifying them helps prevent pollutants (like chemicals, trash) from entering waterways via these drains. This protects urban water quality and ecosystems, thus reducing urban pollution. Destroying the drainage system is harmful and not a goal. Storm drains don't increase water supply (they manage runoff), so the correct significance is reducing urban - area pollution.

Answer:

reducing pollution in urban areas