Final answer:
The b. increased stormwater runoff can lead to an increased volume and flowrate of runoff due to more water flowing over impermeable surfaces, which calls for effective stormwater management practices.
Step-by-step explanation:
The increased stormwater runoff can b. increase the volume and flowrate of runoff. When surfaces such as pavements, roofs, and other impermeable materials cover the ground, they prevent water from infiltrating (seeping into) the soil.
As a result, more water flows over these surfaces and leads to an increased volume and flowrate of stormwater runoff, which can cause flooding and other issues such as erosion and water pollution.
Additional stormwater management practices might be necessary to mitigate these effects, such as creating green spaces, rain gardens, and permeable pavements, to increase infiltration and reduce runoff volumes.