Which of the following practices would best help to protect against inland and coastal flooding in urban areas? Regulating the use of pesticides and fertilizers in agriculture Regulating the use of pesticides and fertilizers in agriculture A Preserving wetland and coastal mangrove habitats Preserving wetland and coastal mangrove habitats B Increasing the capacity of the sewer lines so they can handle a larger volume of water Increasing the capacity of the sewer lines so they can handle a larger volume of water C Straightening stream channels to increase stream flow

Preserving wetland and coastal mangrove habitats

Explanation:

The wetland must be preserved using physical barriers and planting trees around wetland this will protect the outflow of water which is expected during rain into the land. Also the maintained of mangrove habitats is necessary in flood prone coastal areas. The mangrove trees hold on the soil and sediments on the coastal areas further prevent the erosion. The root, canopy of the trees and the tree trunks can prevent the high speed waves generated during storm and thus help in flooding the urban areas.

a and b because with the other three, they simplify to something else.