Groundwater Contamination — MCQ Practice

A clear, odourless groundwater sample is proposed for drinking. What is the strongest next step?

Which pairing correctly distinguishes a common geogenic groundwater problem from a possible human-derived input?

Why may boiling fail as a response to dissolved fluoride contamination?

In a simplified well sample, nitrate mass remains constant while water volume falls from 100 litres to 80 litres. How does concentration change?

A contaminated well is closed, but nearby households switch to another well in the same aquifer. What most directly determines whether exposure has been reduced?