Question

in his article, john schwartz presents the reasoning that wastewater recycling has a public perception challenge to overcome. which piece of evidence sufficiently supports this reason?
purifying wastewater involves a number of steps, including reverse osmosis.
los angeles county uses recycled wastewater in irrigation and in boilers.
governor jerry brown has established water restrictions in california.
activists have coined the slogan \toilet to tap\ to discourage the use of wastewater.

Explanation:

To support the claim that wastewater recycling has a public perception challenge, we need evidence showing public resistance or negative perception.

• The first option explains the purification process, not public perception.
• The second option shows a use of recycled wastewater, not a perception challenge.
• The third option is about water restrictions, not related to wastewater recycling perception.
• The fourth option: Activists using the slogan "toilet to tap" to discourage wastewater use shows public perception (negative) against wastewater recycling, as the slogan implies a yucky association, creating a challenge.

Answer:

D. Activists have coined the slogan "toilet to tap" to discourage the use of wastewater.