question_answer

Direction: Read the passage carefully and answer the questions that follow:

Rainwater harvesting is the gathering or accumulating and storing, of rainwater. Rainwater harvesting has been used to provide drinking water, water for livestock, water for irrigation or to refill aquifers in a process called ground water recharge. Rainwater collected from the roofs of houses, tents and local institutions or from specially prepared areas of ground, can make an important contribution to drinking water. In some cases, rainwater may be the only available or economical water source. Rainwater systems are simple to construct from in expensive local materials, and are potentially successful in most habitable locations. Roof rainwater is usually of good quality and does not require treatment before consumption. Household rainfall catchment systems are appropriate in areas with an average rainfall greater than 200mm per year, and no other accessible water sources.

Which rain water does not require treatment before consumption?

A) Roof rain water

B) Underground rain water

C) Rain water collected in a well

D) All of these

E) None of these