Wetlands areas around an urban parking lot can filter out some of the chemical pollutants from the parking lot before they reach the groundwater.

true or false

True

Explanation: Wetlands are the shallow lands occupied either seasonally or permanently with water. The wetlands are formed by the water of lakes, ponds, rainfall, agricultural irrigation, rivers and oceans. In the given situation, a wetland at the parking lot will filter the chemical pollutants like fuels of the vehicles. This will prevent the polluted water to be drained in an unpolluted water source like a groundwater.          

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.

if you listed your answers right then i believe your answer is b.