Question

when constructing roadways or buildings adjacent to groundwater sources, what should engineers consider to ensure that aquifers have adequate recharge areas? diverting alternative water sources directly into sewers to reduce flooding increase depth of groundwater sources to store more water paving over natural recharge zones to prevent contamination maintaining porous surfaces and protecting possible contamination zones

Explanation:

Porous surfaces allow water infiltration for aquifer recharge. Protecting contamination zones safeguards water - quality for recharge. Diverting to sewers doesn't help recharge, increasing depth isn't about recharge area, and paving over natural zones hinders recharge.

Answer:

maintaining porous surfaces and protecting possible contamination zones